node_modules/object.assign/test.html - main - iliyagladkov/to-do-react

node_modules/object.assign/test.html
18 458 строк1 MB
Iliya
Final
18 фев 2023, 15:04
18 фев 2023, 15:04fae6815
<!doctype html><html><head><meta charset="utf-8"></head><body><pre id="__testling_output"></pre><script>(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
(function (process){
var xws = require('xhr-write-stream');
var Stream = require('stream');
var inspect = require('object-inspect');

process.on = function () {};
var ws = xws('/__testling/sock');
ws.write(window.location.hash + '\n');

function createChannel (writeListen) {
    var c = new Stream;
    c.writable = true;
    c.write = function (buf) {
        if (writeListen) writeListen(buf);
        return ws.write(String(buf));
    };
    c.destroy = function () {};
    c.end = function (buf) {
        c.emit('close');
    };
    
    return c;
}

var lastTestId = 0;
process.stdout = createChannel(function (buf) {
    var m = /^(?:not )? ok (\d+)/.exec(String(buf));
    if (m) lastTestId = m[1];
});
process.stderr = createChannel();
process.stdout.on('close', function () { ws.end() });
process.exit = function () { ws.end() };

var oldError = window.onerror;
window.onerror = function (err, url, lineNum) {
    var type = err && err.name || 'Error';
    process.stdout.write(
        'not ok ' + (lastTestId + 1) + ' ' + type + ': '
        + (err && err.message || String(err))
        + (lineNum ? ' on line ' + lineNum : '')
        + '\n'
    );
    if (err && err.stack) {
        var lines = String(err.stack).split('\n');
        var xs = [];
        for (var i = 0; i < lines.length; i++) {
            xs.push('      ' + lines[i]);
        }
        
        process.stdout.write([
            '  ---',
            '    stack:',
            xs.join('\n'),
            '  ...'
        ].join('\n') + '\n');
    }
    ws.end();
    
    if (typeof oldError === 'function') {
        return oldError.apply(this, arguments);
    }
};
window.__testlingErrorHandler = onerror;

if (typeof console === 'undefined') {
    console = {};
}

var params = (function () {
    var unesc = typeof decodeURIComponent !== 'undefined'
        ? decodeURIComponent : unescape
    ;
    var parts = (window.location.search || '').replace(/^\?/, '').split('&');
    var opts = {};
    for (var i = 0; i < parts.length; i++) {
        var x = parts[i].split('=');
        opts[unesc(x[0])] = unesc(x[1]);
    }
    return opts;
})();

var originalLog = console.log;
console.log = function (msg) {
    var index = 1;
    var args = arguments;
    
    if (typeof msg === 'string') {
        msg = msg.replace(/(^|[^%])%[sd]/g, function (_, s) {
            return s + args[index++];
        });
    }
    else msg = inspect(msg);
    
    for (var i = index; i < args.length; i++) {
        msg += ' ' + inspect(args[i]);
    }
    
    if (params.show === undefined || parseBoolean(params.show)) {
        var elem = document.getElementById('__testling_output');
        if (elem) {
            var txt = document.createTextNode(msg + '\n');
            elem.appendChild(txt);
        }
    }
    process.stdout.write(msg + '\n');
    
    if (typeof originalLog === 'function') {
        return originalLog.apply(this, arguments);
    }
    else if (originalLog) return originalLog(arguments[0]);
};

window.__testlingConsole = console;

function parseBoolean (x) {
    if (x === 'false' || x === '0') return false;
    return true;
}

}).call(this,require("g5I+bs"))
},{"g5I+bs":13,"object-inspect":11,"stream":19,"xhr-write-stream":30}],2:[function(require,module,exports){
;(function () {

  var object = typeof exports != 'undefined' ? exports : this; // #8: web workers
  var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';

  function InvalidCharacterError(message) {
    this.message = message;
  }
  InvalidCharacterError.prototype = new Error;
  InvalidCharacterError.prototype.name = 'InvalidCharacterError';

  // encoder
  // [https://gist.github.com/999166] by [https://github.com/nignag]
  object.btoa || (
  object.btoa = function (input) {
    for (
      // initialize result and counter
      var block, charCode, idx = 0, map = chars, output = '';
      // if the next input index does not exist:
      //   change the mapping table to "="
      //   check if d has no fractional digits
      input.charAt(idx | 0) || (map = '=', idx % 1);
      // "8 - idx % 1 * 8" generates the sequence 2, 4, 6, 8
      output += map.charAt(63 & block >> 8 - idx % 1 * 8)
    ) {
      charCode = input.charCodeAt(idx += 3/4);
      if (charCode > 0xFF) {
        throw new InvalidCharacterError("'btoa' failed: The string to be encoded contains characters outside of the Latin1 range.");
      }
      block = block << 8 | charCode;
    }
    return output;
  });

  // decoder
  // [https://gist.github.com/1020396] by [https://github.com/atk]
  object.atob || (
  object.atob = function (input) {
    input = input.replace(/=+$/, '');
    if (input.length % 4 == 1) {
      throw new InvalidCharacterError("'atob' failed: The string to be decoded is not correctly encoded.");
    }
    for (
      // initialize result and counters
      var bc = 0, bs, buffer, idx = 0, output = '';
      // get next character
      buffer = input.charAt(idx++);
      // character found in table? initialize bit storage and add its ascii value;
      ~buffer && (bs = bc % 4 ? bs * 64 + buffer : buffer,
        // and if not first of each 4 characters,
        // convert the first 8 bits to one ascii character
        bc++ % 4) ? output += String.fromCharCode(255 & bs >> (-2 * bc & 6)) : 0
    ) {
      // try to find character in table (0-63, not found => -1)
      buffer = chars.indexOf(buffer);
    }
    return output;
  });

}());

},{}],3:[function(require,module,exports){
/*!
 * The buffer module from node.js, for the browser.
 *
 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
 * @license  MIT
 */

var base64 = require('base64-js')
var ieee754 = require('ieee754')

exports.Buffer = Buffer
exports.SlowBuffer = Buffer
exports.INSPECT_MAX_BYTES = 50
Buffer.poolSize = 8192

/**
 * If `Buffer._useTypedArrays`:
 *   === true    Use Uint8Array implementation (fastest)
 *   === false   Use Object implementation (compatible down to IE6)
 */
Buffer._useTypedArrays = (function () {
  // Detect if browser supports Typed Arrays. Supported browsers are IE 10+, Firefox 4+,
  // Chrome 7+, Safari 5.1+, Opera 11.6+, iOS 4.2+. If the browser does not support adding
  // properties to `Uint8Array` instances, then that's the same as no `Uint8Array` support
  // because we need to be able to add all the node Buffer API methods. This is an issue
  // in Firefox 4-29. Now fixed: https://bugzilla.mozilla.org/show_bug.cgi?id=695438
  try {
    var buf = new ArrayBuffer(0)
    var arr = new Uint8Array(buf)
    arr.foo = function () { return 42 }
    return 42 === arr.foo() &&
        typeof arr.subarray === 'function' // Chrome 9-10 lack `subarray`
  } catch (e) {
    return false
  }
})()

/**
 * Class: Buffer
 * =============
 *
 * The Buffer constructor returns instances of `Uint8Array` that are augmented
 * with function properties for all the node `Buffer` API functions. We use
 * `Uint8Array` so that square bracket notation works as expected -- it returns
 * a single octet.
 *
 * By augmenting the instances, we can avoid modifying the `Uint8Array`
 * prototype.
 */
function Buffer (subject, encoding, noZero) {
  if (!(this instanceof Buffer))
    return new Buffer(subject, encoding, noZero)

  var type = typeof subject

  // Workaround: node's base64 implementation allows for non-padded strings
  // while base64-js does not.
  if (encoding === 'base64' && type === 'string') {
    subject = stringtrim(subject)
    while (subject.length % 4 !== 0) {
      subject = subject + '='
    }
  }

  // Find the length
  var length
  if (type === 'number')
    length = coerce(subject)
  else if (type === 'string')
    length = Buffer.byteLength(subject, encoding)
  else if (type === 'object')
    length = coerce(subject.length) // assume that object is array-like
  else
    throw new Error('First argument needs to be a number, array or string.')

  var buf
  if (Buffer._useTypedArrays) {
    // Preferred: Return an augmented `Uint8Array` instance for best performance
    buf = Buffer._augment(new Uint8Array(length))
  } else {
    // Fallback: Return THIS instance of Buffer (created by `new`)
    buf = this
    buf.length = length
    buf._isBuffer = true
  }

  var i
  if (Buffer._useTypedArrays && typeof subject.byteLength === 'number') {
    // Speed optimization -- use set if we're copying from a typed array
    buf._set(subject)
  } else if (isArrayish(subject)) {
    // Treat array-ish objects as a byte array
    for (i = 0; i < length; i++) {
      if (Buffer.isBuffer(subject))
        buf[i] = subject.readUInt8(i)
      else
        buf[i] = subject[i]
    }
  } else if (type === 'string') {
    buf.write(subject, 0, encoding)
  } else if (type === 'number' && !Buffer._useTypedArrays && !noZero) {
    for (i = 0; i < length; i++) {
      buf[i] = 0
    }
  }

  return buf
}

// STATIC METHODS
// ==============

Buffer.isEncoding = function (encoding) {
  switch (String(encoding).toLowerCase()) {
    case 'hex':
    case 'utf8':
    case 'utf-8':
    case 'ascii':
    case 'binary':
    case 'base64':
    case 'raw':
    case 'ucs2':
    case 'ucs-2':
    case 'utf16le':
    case 'utf-16le':
      return true
    default:
      return false
  }
}

Buffer.isBuffer = function (b) {
  return !!(b !== null && b !== undefined && b._isBuffer)
}

Buffer.byteLength = function (str, encoding) {
  var ret
  str = str + ''
  switch (encoding || 'utf8') {
    case 'hex':
      ret = str.length / 2
      break
    case 'utf8':
    case 'utf-8':
      ret = utf8ToBytes(str).length
      break
    case 'ascii':
    case 'binary':
    case 'raw':
      ret = str.length
      break
    case 'base64':
      ret = base64ToBytes(str).length
      break
    case 'ucs2':
    case 'ucs-2':
    case 'utf16le':
    case 'utf-16le':
      ret = str.length * 2
      break
    default:
      throw new Error('Unknown encoding')
  }
  return ret
}

Buffer.concat = function (list, totalLength) {
  assert(isArray(list), 'Usage: Buffer.concat(list, [totalLength])\n' +
      'list should be an Array.')

  if (list.length === 0) {
    return new Buffer(0)
  } else if (list.length === 1) {
    return list[0]
  }

  var i
  if (typeof totalLength !== 'number') {
    totalLength = 0
    for (i = 0; i < list.length; i++) {
      totalLength += list[i].length
    }
  }

  var buf = new Buffer(totalLength)
  var pos = 0
  for (i = 0; i < list.length; i++) {
    var item = list[i]
    item.copy(buf, pos)
    pos += item.length
  }
  return buf
}

// BUFFER INSTANCE METHODS
// =======================

function _hexWrite (buf, string, offset, length) {
  offset = Number(offset) || 0
  var remaining = buf.length - offset
  if (!length) {
    length = remaining
  } else {
    length = Number(length)
    if (length > remaining) {
      length = remaining
    }
  }

  // must be an even number of digits
  var strLen = string.length
  assert(strLen % 2 === 0, 'Invalid hex string')

  if (length > strLen / 2) {
    length = strLen / 2
  }
  for (var i = 0; i < length; i++) {
    var byte = parseInt(string.substr(i * 2, 2), 16)
    assert(!isNaN(byte), 'Invalid hex string')
    buf[offset + i] = byte
  }
  Buffer._charsWritten = i * 2
  return i
}

function _utf8Write (buf, string, offset, length) {
  var charsWritten = Buffer._charsWritten =
    blitBuffer(utf8ToBytes(string), buf, offset, length)
  return charsWritten
}

function _asciiWrite (buf, string, offset, length) {
  var charsWritten = Buffer._charsWritten =
    blitBuffer(asciiToBytes(string), buf, offset, length)
  return charsWritten
}

function _binaryWrite (buf, string, offset, length) {
  return _asciiWrite(buf, string, offset, length)
}

function _base64Write (buf, string, offset, length) {
  var charsWritten = Buffer._charsWritten =
    blitBuffer(base64ToBytes(string), buf, offset, length)
  return charsWritten
}

function _utf16leWrite (buf, string, offset, length) {
  var charsWritten = Buffer._charsWritten =
    blitBuffer(utf16leToBytes(string), buf, offset, length)
  return charsWritten
}

Buffer.prototype.write = function (string, offset, length, encoding) {
  // Support both (string, offset, length, encoding)
  // and the legacy (string, encoding, offset, length)
  if (isFinite(offset)) {
    if (!isFinite(length)) {
      encoding = length
      length = undefined
    }
  } else {  // legacy
    var swap = encoding
    encoding = offset
    offset = length
    length = swap
  }

  offset = Number(offset) || 0
  var remaining = this.length - offset
  if (!length) {
    length = remaining
  } else {
    length = Number(length)
    if (length > remaining) {
      length = remaining
    }
  }
  encoding = String(encoding || 'utf8').toLowerCase()

  var ret
  switch (encoding) {
    case 'hex':
      ret = _hexWrite(this, string, offset, length)
      break
    case 'utf8':
    case 'utf-8':
      ret = _utf8Write(this, string, offset, length)
      break
    case 'ascii':
      ret = _asciiWrite(this, string, offset, length)
      break
    case 'binary':
      ret = _binaryWrite(this, string, offset, length)
      break
    case 'base64':
      ret = _base64Write(this, string, offset, length)
      break
    case 'ucs2':
    case 'ucs-2':
    case 'utf16le':
    case 'utf-16le':
      ret = _utf16leWrite(this, string, offset, length)
      break
    default:
      throw new Error('Unknown encoding')
  }
  return ret
}

Buffer.prototype.toString = function (encoding, start, end) {
  var self = this

  encoding = String(encoding || 'utf8').toLowerCase()
  start = Number(start) || 0
  end = (end !== undefined)
    ? Number(end)
    : end = self.length

  // Fastpath empty strings
  if (end === start)
    return ''

  var ret
  switch (encoding) {
    case 'hex':
      ret = _hexSlice(self, start, end)
      break
    case 'utf8':
    case 'utf-8':
      ret = _utf8Slice(self, start, end)
      break
    case 'ascii':
      ret = _asciiSlice(self, start, end)
      break
    case 'binary':
      ret = _binarySlice(self, start, end)
      break
    case 'base64':
      ret = _base64Slice(self, start, end)
      break
    case 'ucs2':
    case 'ucs-2':
    case 'utf16le':
    case 'utf-16le':
      ret = _utf16leSlice(self, start, end)
      break
    default:
      throw new Error('Unknown encoding')
  }
  return ret
}

Buffer.prototype.toJSON = function () {
  return {
    type: 'Buffer',
    data: Array.prototype.slice.call(this._arr || this, 0)
  }
}

// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function (target, target_start, start, end) {
  var source = this

  if (!start) start = 0
  if (!end && end !== 0) end = this.length
  if (!target_start) target_start = 0

  // Copy 0 bytes; we're done
  if (end === start) return
  if (target.length === 0 || source.length === 0) return

  // Fatal error conditions
  assert(end >= start, 'sourceEnd < sourceStart')
  assert(target_start >= 0 && target_start < target.length,
      'targetStart out of bounds')
  assert(start >= 0 && start < source.length, 'sourceStart out of bounds')
  assert(end >= 0 && end <= source.length, 'sourceEnd out of bounds')

  // Are we oob?
  if (end > this.length)
    end = this.length
  if (target.length - target_start < end - start)
    end = target.length - target_start + start

  var len = end - start

  if (len < 100 || !Buffer._useTypedArrays) {
    for (var i = 0; i < len; i++)
      target[i + target_start] = this[i + start]
  } else {
    target._set(this.subarray(start, start + len), target_start)
  }
}

function _base64Slice (buf, start, end) {
  if (start === 0 && end === buf.length) {
    return base64.fromByteArray(buf)
  } else {
    return base64.fromByteArray(buf.slice(start, end))
  }
}

function _utf8Slice (buf, start, end) {
  var res = ''
  var tmp = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; i++) {
    if (buf[i] <= 0x7F) {
      res += decodeUtf8Char(tmp) + String.fromCharCode(buf[i])
      tmp = ''
    } else {
      tmp += '%' + buf[i].toString(16)
    }
  }

  return res + decodeUtf8Char(tmp)
}

function _asciiSlice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; i++)
    ret += String.fromCharCode(buf[i])
  return ret
}

function _binarySlice (buf, start, end) {
  return _asciiSlice(buf, start, end)
}

function _hexSlice (buf, start, end) {
  var len = buf.length

  if (!start || start < 0) start = 0
  if (!end || end < 0 || end > len) end = len

  var out = ''
  for (var i = start; i < end; i++) {
    out += toHex(buf[i])
  }
  return out
}

function _utf16leSlice (buf, start, end) {
  var bytes = buf.slice(start, end)
  var res = ''
  for (var i = 0; i < bytes.length; i += 2) {
    res += String.fromCharCode(bytes[i] + bytes[i+1] * 256)
  }
  return res
}

Buffer.prototype.slice = function (start, end) {
  var len = this.length
  start = clamp(start, len, 0)
  end = clamp(end, len, len)

  if (Buffer._useTypedArrays) {
    return Buffer._augment(this.subarray(start, end))
  } else {
    var sliceLen = end - start
    var newBuf = new Buffer(sliceLen, undefined, true)
    for (var i = 0; i < sliceLen; i++) {
      newBuf[i] = this[i + start]
    }
    return newBuf
  }
}

// `get` will be removed in Node 0.13+
Buffer.prototype.get = function (offset) {
  console.log('.get() is deprecated. Access using array indexes instead.')
  return this.readUInt8(offset)
}

// `set` will be removed in Node 0.13+
Buffer.prototype.set = function (v, offset) {
  console.log('.set() is deprecated. Access using array indexes instead.')
  return this.writeUInt8(v, offset)
}

Buffer.prototype.readUInt8 = function (offset, noAssert) {
  if (!noAssert) {
    assert(offset !== undefined && offset !== null, 'missing offset')
    assert(offset < this.length, 'Trying to read beyond buffer length')
  }

  if (offset >= this.length)
    return

  return this[offset]
}

function _readUInt16 (buf, offset, littleEndian, noAssert) {
  if (!noAssert) {
    assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
    assert(offset !== undefined && offset !== null, 'missing offset')
    assert(offset + 1 < buf.length, 'Trying to read beyond buffer length')
  }

  var len = buf.length
  if (offset >= len)
    return

  var val
  if (littleEndian) {
    val = buf[offset]
    if (offset + 1 < len)
      val |= buf[offset + 1] << 8
  } else {
    val = buf[offset] << 8
    if (offset + 1 < len)
      val |= buf[offset + 1]
  }
  return val
}

Buffer.prototype.readUInt16LE = function (offset, noAssert) {
  return _readUInt16(this, offset, true, noAssert)
}

Buffer.prototype.readUInt16BE = function (offset, noAssert) {
  return _readUInt16(this, offset, false, noAssert)
}

function _readUInt32 (buf, offset, littleEndian, noAssert) {
  if (!noAssert) {
    assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
    assert(offset !== undefined && offset !== null, 'missing offset')
    assert(offset + 3 < buf.length, 'Trying to read beyond buffer length')
  }

  var len = buf.length
  if (offset >= len)
    return

  var val
  if (littleEndian) {
    if (offset + 2 < len)
      val = buf[offset + 2] << 16
    if (offset + 1 < len)
      val |= buf[offset + 1] << 8
    val |= buf[offset]
    if (offset + 3 < len)
      val = val + (buf[offset + 3] << 24 >>> 0)
  } else {
    if (offset + 1 < len)
      val = buf[offset + 1] << 16
    if (offset + 2 < len)
      val |= buf[offset + 2] << 8
    if (offset + 3 < len)
      val |= buf[offset + 3]
    val = val + (buf[offset] << 24 >>> 0)
  }
  return val
}

Buffer.prototype.readUInt32LE = function (offset, noAssert) {
  return _readUInt32(this, offset, true, noAssert)
}

Buffer.prototype.readUInt32BE = function (offset, noAssert) {
  return _readUInt32(this, offset, false, noAssert)
}

Buffer.prototype.readInt8 = function (offset, noAssert) {
  if (!noAssert) {
    assert(offset !== undefined && offset !== null,
        'missing offset')
    assert(offset < this.length, 'Trying to read beyond buffer length')
  }

  if (offset >= this.length)
    return

  var neg = this[offset] & 0x80
  if (neg)
    return (0xff - this[offset] + 1) * -1
  else
    return this[offset]
}

function _readInt16 (buf, offset, littleEndian, noAssert) {
  if (!noAssert) {
    assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
    assert(offset !== undefined && offset !== null, 'missing offset')
    assert(offset + 1 < buf.length, 'Trying to read beyond buffer length')
  }

  var len = buf.length
  if (offset >= len)
    return

  var val = _readUInt16(buf, offset, littleEndian, true)
  var neg = val & 0x8000
  if (neg)
    return (0xffff - val + 1) * -1
  else
    return val
}

Buffer.prototype.readInt16LE = function (offset, noAssert) {
  return _readInt16(this, offset, true, noAssert)
}

Buffer.prototype.readInt16BE = function (offset, noAssert) {
  return _readInt16(this, offset, false, noAssert)
}

function _readInt32 (buf, offset, littleEndian, noAssert) {
  if (!noAssert) {
    assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
    assert(offset !== undefined && offset !== null, 'missing offset')
    assert(offset + 3 < buf.length, 'Trying to read beyond buffer length')
  }

  var len = buf.length
  if (offset >= len)
    return

  var val = _readUInt32(buf, offset, littleEndian, true)
  var neg = val & 0x80000000
  if (neg)
    return (0xffffffff - val + 1) * -1
  else
    return val
}

Buffer.prototype.readInt32LE = function (offset, noAssert) {
  return _readInt32(this, offset, true, noAssert)
}

Buffer.prototype.readInt32BE = function (offset, noAssert) {
  return _readInt32(this, offset, false, noAssert)
}

function _readFloat (buf, offset, littleEndian, noAssert) {
  if (!noAssert) {
    assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
    assert(offset + 3 < buf.length, 'Trying to read beyond buffer length')
  }

  return ieee754.read(buf, offset, littleEndian, 23, 4)
}

Buffer.prototype.readFloatLE = function (offset, noAssert) {
  return _readFloat(this, offset, true, noAssert)
}

Buffer.prototype.readFloatBE = function (offset, noAssert) {
  return _readFloat(this, offset, false, noAssert)
}

function _readDouble (buf, offset, littleEndian, noAssert) {
  if (!noAssert) {
    assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
    assert(offset + 7 < buf.length, 'Trying to read beyond buffer length')
  }

  return ieee754.read(buf, offset, littleEndian, 52, 8)
}

Buffer.prototype.readDoubleLE = function (offset, noAssert) {
  return _readDouble(this, offset, true, noAssert)
}

Buffer.prototype.readDoubleBE = function (offset, noAssert) {
  return _readDouble(this, offset, false, noAssert)
}

Buffer.prototype.writeUInt8 = function (value, offset, noAssert) {
  if (!noAssert) {
    assert(value !== undefined && value !== null, 'missing value')
    assert(offset !== undefined && offset !== null, 'missing offset')
    assert(offset < this.length, 'trying to write beyond buffer length')
    verifuint(value, 0xff)
  }

  if (offset >= this.length) return

  this[offset] = value
}

function _writeUInt16 (buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    assert(value !== undefined && value !== null, 'missing value')
    assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
    assert(offset !== undefined && offset !== null, 'missing offset')
    assert(offset + 1 < buf.length, 'trying to write beyond buffer length')
    verifuint(value, 0xffff)
  }

  var len = buf.length
  if (offset >= len)
    return

  for (var i = 0, j = Math.min(len - offset, 2); i < j; i++) {
    buf[offset + i] =
        (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
            (littleEndian ? i : 1 - i) * 8
  }
}

Buffer.prototype.writeUInt16LE = function (value, offset, noAssert) {
  _writeUInt16(this, value, offset, true, noAssert)
}

Buffer.prototype.writeUInt16BE = function (value, offset, noAssert) {
  _writeUInt16(this, value, offset, false, noAssert)
}

function _writeUInt32 (buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    assert(value !== undefined && value !== null, 'missing value')
    assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
    assert(offset !== undefined && offset !== null, 'missing offset')
    assert(offset + 3 < buf.length, 'trying to write beyond buffer length')
    verifuint(value, 0xffffffff)
  }

  var len = buf.length
  if (offset >= len)
    return

  for (var i = 0, j = Math.min(len - offset, 4); i < j; i++) {
    buf[offset + i] =
        (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
  }
}

Buffer.prototype.writeUInt32LE = function (value, offset, noAssert) {
  _writeUInt32(this, value, offset, true, noAssert)
}

Buffer.prototype.writeUInt32BE = function (value, offset, noAssert) {
  _writeUInt32(this, value, offset, false, noAssert)
}

Buffer.prototype.writeInt8 = function (value, offset, noAssert) {
  if (!noAssert) {
    assert(value !== undefined && value !== null, 'missing value')
    assert(offset !== undefined && offset !== null, 'missing offset')
    assert(offset < this.length, 'Trying to write beyond buffer length')
    verifsint(value, 0x7f, -0x80)
  }

  if (offset >= this.length)
    return

  if (value >= 0)
    this.writeUInt8(value, offset, noAssert)
  else
    this.writeUInt8(0xff + value + 1, offset, noAssert)
}

function _writeInt16 (buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    assert(value !== undefined && value !== null, 'missing value')
    assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
    assert(offset !== undefined && offset !== null, 'missing offset')
    assert(offset + 1 < buf.length, 'Trying to write beyond buffer length')
    verifsint(value, 0x7fff, -0x8000)
  }

  var len = buf.length
  if (offset >= len)
    return

  if (value >= 0)
    _writeUInt16(buf, value, offset, littleEndian, noAssert)
  else
    _writeUInt16(buf, 0xffff + value + 1, offset, littleEndian, noAssert)
}

Buffer.prototype.writeInt16LE = function (value, offset, noAssert) {
  _writeInt16(this, value, offset, true, noAssert)
}

Buffer.prototype.writeInt16BE = function (value, offset, noAssert) {
  _writeInt16(this, value, offset, false, noAssert)
}

function _writeInt32 (buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    assert(value !== undefined && value !== null, 'missing value')
    assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
    assert(offset !== undefined && offset !== null, 'missing offset')
    assert(offset + 3 < buf.length, 'Trying to write beyond buffer length')
    verifsint(value, 0x7fffffff, -0x80000000)
  }

  var len = buf.length
  if (offset >= len)
    return

  if (value >= 0)
    _writeUInt32(buf, value, offset, littleEndian, noAssert)
  else
    _writeUInt32(buf, 0xffffffff + value + 1, offset, littleEndian, noAssert)
}

Buffer.prototype.writeInt32LE = function (value, offset, noAssert) {
  _writeInt32(this, value, offset, true, noAssert)
}

Buffer.prototype.writeInt32BE = function (value, offset, noAssert) {
  _writeInt32(this, value, offset, false, noAssert)
}

function _writeFloat (buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    assert(value !== undefined && value !== null, 'missing value')
    assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
    assert(offset !== undefined && offset !== null, 'missing offset')
    assert(offset + 3 < buf.length, 'Trying to write beyond buffer length')
    verifIEEE754(value, 3.4028234663852886e+38, -3.4028234663852886e+38)
  }

  var len = buf.length
  if (offset >= len)
    return

  ieee754.write(buf, value, offset, littleEndian, 23, 4)
}

Buffer.prototype.writeFloatLE = function (value, offset, noAssert) {
  _writeFloat(this, value, offset, true, noAssert)
}

Buffer.prototype.writeFloatBE = function (value, offset, noAssert) {
  _writeFloat(this, value, offset, false, noAssert)
}

function _writeDouble (buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    assert(value !== undefined && value !== null, 'missing value')
    assert(typeof littleEndian === 'boolean', 'missing or invalid endian')
    assert(offset !== undefined && offset !== null, 'missing offset')
    assert(offset + 7 < buf.length,
        'Trying to write beyond buffer length')
    verifIEEE754(value, 1.7976931348623157E+308, -1.7976931348623157E+308)
  }

  var len = buf.length
  if (offset >= len)
    return

  ieee754.write(buf, value, offset, littleEndian, 52, 8)
}

Buffer.prototype.writeDoubleLE = function (value, offset, noAssert) {
  _writeDouble(this, value, offset, true, noAssert)
}

Buffer.prototype.writeDoubleBE = function (value, offset, noAssert) {
  _writeDouble(this, value, offset, false, noAssert)
}

// fill(value, start=0, end=buffer.length)
Buffer.prototype.fill = function (value, start, end) {
  if (!value) value = 0
  if (!start) start = 0
  if (!end) end = this.length

  if (typeof value === 'string') {
    value = value.charCodeAt(0)
  }

  assert(typeof value === 'number' && !isNaN(value), 'value is not a number')
  assert(end >= start, 'end < start')

  // Fill 0 bytes; we're done
  if (end === start) return
  if (this.length === 0) return

  assert(start >= 0 && start < this.length, 'start out of bounds')
  assert(end >= 0 && end <= this.length, 'end out of bounds')

  for (var i = start; i < end; i++) {
    this[i] = value
  }
}

Buffer.prototype.inspect = function () {
  var out = []
  var len = this.length
  for (var i = 0; i < len; i++) {
    out[i] = toHex(this[i])
    if (i === exports.INSPECT_MAX_BYTES) {
      out[i + 1] = '...'
      break
    }
  }
  return '<Buffer ' + out.join(' ') + '>'
}

/**
 * Creates a new `ArrayBuffer` with the *copied* memory of the buffer instance.
 * Added in Node 0.12. Only available in browsers that support ArrayBuffer.
 */
Buffer.prototype.toArrayBuffer = function () {
  if (typeof Uint8Array !== 'undefined') {
    if (Buffer._useTypedArrays) {
      return (new Buffer(this)).buffer
    } else {
      var buf = new Uint8Array(this.length)
      for (var i = 0, len = buf.length; i < len; i += 1)
        buf[i] = this[i]
      return buf.buffer
    }
  } else {
    throw new Error('Buffer.toArrayBuffer not supported in this browser')
  }
}

// HELPER FUNCTIONS
// ================

function stringtrim (str) {
  if (str.trim) return str.trim()
  return str.replace(/^\s+|\s+$/g, '')
}

var BP = Buffer.prototype

/**
 * Augment a Uint8Array *instance* (not the Uint8Array class!) with Buffer methods
 */
Buffer._augment = function (arr) {
  arr._isBuffer = true

  // save reference to original Uint8Array get/set methods before overwriting
  arr._get = arr.get
  arr._set = arr.set

  // deprecated, will be removed in node 0.13+
  arr.get = BP.get
  arr.set = BP.set

  arr.write = BP.write
  arr.toString = BP.toString
  arr.toLocaleString = BP.toString
  arr.toJSON = BP.toJSON
  arr.copy = BP.copy
  arr.slice = BP.slice
  arr.readUInt8 = BP.readUInt8
  arr.readUInt16LE = BP.readUInt16LE
  arr.readUInt16BE = BP.readUInt16BE
  arr.readUInt32LE = BP.readUInt32LE
  arr.readUInt32BE = BP.readUInt32BE
  arr.readInt8 = BP.readInt8
  arr.readInt16LE = BP.readInt16LE
  arr.readInt16BE = BP.readInt16BE
  arr.readInt32LE = BP.readInt32LE
  arr.readInt32BE = BP.readInt32BE
  arr.readFloatLE = BP.readFloatLE
  arr.readFloatBE = BP.readFloatBE
  arr.readDoubleLE = BP.readDoubleLE
  arr.readDoubleBE = BP.readDoubleBE
  arr.writeUInt8 = BP.writeUInt8
  arr.writeUInt16LE = BP.writeUInt16LE
  arr.writeUInt16BE = BP.writeUInt16BE
  arr.writeUInt32LE = BP.writeUInt32LE
  arr.writeUInt32BE = BP.writeUInt32BE
  arr.writeInt8 = BP.writeInt8
  arr.writeInt16LE = BP.writeInt16LE
  arr.writeInt16BE = BP.writeInt16BE
  arr.writeInt32LE = BP.writeInt32LE
  arr.writeInt32BE = BP.writeInt32BE
  arr.writeFloatLE = BP.writeFloatLE
  arr.writeFloatBE = BP.writeFloatBE
  arr.writeDoubleLE = BP.writeDoubleLE
  arr.writeDoubleBE = BP.writeDoubleBE
  arr.fill = BP.fill
  arr.inspect = BP.inspect
  arr.toArrayBuffer = BP.toArrayBuffer

  return arr
}

// slice(start, end)
function clamp (index, len, defaultValue) {
  if (typeof index !== 'number') return defaultValue
  index = ~~index;  // Coerce to integer.
  if (index >= len) return len
  if (index >= 0) return index
  index += len
  if (index >= 0) return index
  return 0
}

function coerce (length) {
  // Coerce length to a number (possibly NaN), round up
  // in case it's fractional (e.g. 123.456) then do a
  // double negate to coerce a NaN to 0. Easy, right?
  length = ~~Math.ceil(+length)
  return length < 0 ? 0 : length
}

function isArray (subject) {
  return (Array.isArray || function (subject) {
    return Object.prototype.toString.call(subject) === '[object Array]'
  })(subject)
}

function isArrayish (subject) {
  return isArray(subject) || Buffer.isBuffer(subject) ||
      subject && typeof subject === 'object' &&
      typeof subject.length === 'number'
}

function toHex (n) {
  if (n < 16) return '0' + n.toString(16)
  return n.toString(16)
}

function utf8ToBytes (str) {
  var byteArray = []
  for (var i = 0; i < str.length; i++) {
    var b = str.charCodeAt(i)
    if (b <= 0x7F)
      byteArray.push(str.charCodeAt(i))
    else {
      var start = i
      if (b >= 0xD800 && b <= 0xDFFF) i++
      var h = encodeURIComponent(str.slice(start, i+1)).substr(1).split('%')
      for (var j = 0; j < h.length; j++)
        byteArray.push(parseInt(h[j], 16))
    }
  }
  return byteArray
}

function asciiToBytes (str) {
  var byteArray = []
  for (var i = 0; i < str.length; i++) {
    // Node's code seems to be doing this and not & 0x7F..
    byteArray.push(str.charCodeAt(i) & 0xFF)
  }
  return byteArray
}

function utf16leToBytes (str) {
  var c, hi, lo
  var byteArray = []
  for (var i = 0; i < str.length; i++) {
    c = str.charCodeAt(i)
    hi = c >> 8
    lo = c % 256
    byteArray.push(lo)
    byteArray.push(hi)
  }

  return byteArray
}

function base64ToBytes (str) {
  return base64.toByteArray(str)
}

function blitBuffer (src, dst, offset, length) {
  var pos
  for (var i = 0; i < length; i++) {
    if ((i + offset >= dst.length) || (i >= src.length))
      break
    dst[i + offset] = src[i]
  }
  return i
}

function decodeUtf8Char (str) {
  try {
    return decodeURIComponent(str)
  } catch (err) {
    return String.fromCharCode(0xFFFD) // UTF 8 invalid char
  }
}

/*
 * We have to make sure that the value is a valid integer. This means that it
 * is non-negative. It has no fractional component and that it does not
 * exceed the maximum allowed value.
 */
function verifuint (value, max) {
  assert(typeof value === 'number', 'cannot write a non-number as a number')
  assert(value >= 0, 'specified a negative value for writing an unsigned value')
  assert(value <= max, 'value is larger than maximum value for type')
  assert(Math.floor(value) === value, 'value has a fractional component')
}

function verifsint (value, max, min) {
  assert(typeof value === 'number', 'cannot write a non-number as a number')
  assert(value <= max, 'value larger than maximum allowed value')
  assert(value >= min, 'value smaller than minimum allowed value')
  assert(Math.floor(value) === value, 'value has a fractional component')
}

function verifIEEE754 (value, max, min) {
  assert(typeof value === 'number', 'cannot write a non-number as a number')
  assert(value <= max, 'value larger than maximum allowed value')
  assert(value >= min, 'value smaller than minimum allowed value')
}

function assert (test, message) {
  if (!test) throw new Error(message || 'Failed assertion')
}

},{"base64-js":4,"ieee754":9}],4:[function(require,module,exports){
var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';

;(function (exports) {
	'use strict';

  var Arr = (typeof Uint8Array !== 'undefined')
    ? Uint8Array
    : Array

	var PLUS   = '+'.charCodeAt(0)
	var SLASH  = '/'.charCodeAt(0)
	var NUMBER = '0'.charCodeAt(0)
	var LOWER  = 'a'.charCodeAt(0)
	var UPPER  = 'A'.charCodeAt(0)
	var PLUS_URL_SAFE = '-'.charCodeAt(0)
	var SLASH_URL_SAFE = '_'.charCodeAt(0)

	function decode (elt) {
		var code = elt.charCodeAt(0)
		if (code === PLUS ||
		    code === PLUS_URL_SAFE)
			return 62 // '+'
		if (code === SLASH ||
		    code === SLASH_URL_SAFE)
			return 63 // '/'
		if (code < NUMBER)
			return -1 //no match
		if (code < NUMBER + 10)
			return code - NUMBER + 26 + 26
		if (code < UPPER + 26)
			return code - UPPER
		if (code < LOWER + 26)
			return code - LOWER + 26
	}

	function b64ToByteArray (b64) {
		var i, j, l, tmp, placeHolders, arr

		if (b64.length % 4 > 0) {
			throw new Error('Invalid string. Length must be a multiple of 4')
		}

		// the number of equal signs (place holders)
		// if there are two placeholders, than the two characters before it
		// represent one byte
		// if there is only one, then the three characters before it represent 2 bytes
		// this is just a cheap hack to not do indexOf twice
		var len = b64.length
		placeHolders = '=' === b64.charAt(len - 2) ? 2 : '=' === b64.charAt(len - 1) ? 1 : 0

		// base64 is 4/3 + up to two characters of the original data
		arr = new Arr(b64.length * 3 / 4 - placeHolders)

		// if there are placeholders, only get up to the last complete 4 chars
		l = placeHolders > 0 ? b64.length - 4 : b64.length

		var L = 0

		function push (v) {
			arr[L++] = v
		}

		for (i = 0, j = 0; i < l; i += 4, j += 3) {
			tmp = (decode(b64.charAt(i)) << 18) | (decode(b64.charAt(i + 1)) << 12) | (decode(b64.charAt(i + 2)) << 6) | decode(b64.charAt(i + 3))
			push((tmp & 0xFF0000) >> 16)
			push((tmp & 0xFF00) >> 8)
			push(tmp & 0xFF)
		}

		if (placeHolders === 2) {
			tmp = (decode(b64.charAt(i)) << 2) | (decode(b64.charAt(i + 1)) >> 4)
			push(tmp & 0xFF)
		} else if (placeHolders === 1) {
			tmp = (decode(b64.charAt(i)) << 10) | (decode(b64.charAt(i + 1)) << 4) | (decode(b64.charAt(i + 2)) >> 2)
			push((tmp >> 8) & 0xFF)
			push(tmp & 0xFF)
		}

		return arr
	}

	function uint8ToBase64 (uint8) {
		var i,
			extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes
			output = "",
			temp, length

		function encode (num) {
			return lookup.charAt(num)
		}

		function tripletToBase64 (num) {
			return encode(num >> 18 & 0x3F) + encode(num >> 12 & 0x3F) + encode(num >> 6 & 0x3F) + encode(num & 0x3F)
		}

		// go through the array every three bytes, we'll deal with trailing stuff later
		for (i = 0, length = uint8.length - extraBytes; i < length; i += 3) {
			temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
			output += tripletToBase64(temp)
		}

		// pad the end with zeros, but make sure to not forget the extra bytes
		switch (extraBytes) {
			case 1:
				temp = uint8[uint8.length - 1]
				output += encode(temp >> 2)
				output += encode((temp << 4) & 0x3F)
				output += '=='
				break
			case 2:
				temp = (uint8[uint8.length - 2] << 8) + (uint8[uint8.length - 1])
				output += encode(temp >> 10)
				output += encode((temp >> 4) & 0x3F)
				output += encode((temp << 2) & 0x3F)
				output += '='
				break
		}

		return output
	}

	exports.toByteArray = b64ToByteArray
	exports.fromByteArray = uint8ToBase64
}(typeof exports === 'undefined' ? (this.base64js = {}) : exports))

},{}],5:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

function EventEmitter() {
  this._events = this._events || {};
  this._maxListeners = this._maxListeners || undefined;
}
module.exports = EventEmitter;

// Backwards-compat with node 0.10.x
EventEmitter.EventEmitter = EventEmitter;

EventEmitter.prototype._events = undefined;
EventEmitter.prototype._maxListeners = undefined;

// By default EventEmitters will print a warning if more than 10 listeners are
// added to it. This is a useful default which helps finding memory leaks.
EventEmitter.defaultMaxListeners = 10;

// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
EventEmitter.prototype.setMaxListeners = function(n) {
  if (!isNumber(n) || n < 0 || isNaN(n))
    throw TypeError('n must be a positive number');
  this._maxListeners = n;
  return this;
};

EventEmitter.prototype.emit = function(type) {
  var er, handler, len, args, i, listeners;

  if (!this._events)
    this._events = {};

  // If there is no 'error' event listener then throw.
  if (type === 'error') {
    if (!this._events.error ||
        (isObject(this._events.error) && !this._events.error.length)) {
      er = arguments[1];
      if (er instanceof Error) {
        throw er; // Unhandled 'error' event
      }
      throw TypeError('Uncaught, unspecified "error" event.');
    }
  }

  handler = this._events[type];

  if (isUndefined(handler))
    return false;

  if (isFunction(handler)) {
    switch (arguments.length) {
      // fast cases
      case 1:
        handler.call(this);
        break;
      case 2:
        handler.call(this, arguments[1]);
        break;
      case 3:
        handler.call(this, arguments[1], arguments[2]);
        break;
      // slower
      default:
        len = arguments.length;
        args = new Array(len - 1);
        for (i = 1; i < len; i++)
          args[i - 1] = arguments[i];
        handler.apply(this, args);
    }
  } else if (isObject(handler)) {
    len = arguments.length;
    args = new Array(len - 1);
    for (i = 1; i < len; i++)
      args[i - 1] = arguments[i];

    listeners = handler.slice();
    len = listeners.length;
    for (i = 0; i < len; i++)
      listeners[i].apply(this, args);
  }

  return true;
};

EventEmitter.prototype.addListener = function(type, listener) {
  var m;

  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  if (!this._events)
    this._events = {};

  // To avoid recursion in the case that type === "newListener"! Before
  // adding it to the listeners, first emit "newListener".
  if (this._events.newListener)
    this.emit('newListener', type,
              isFunction(listener.listener) ?
              listener.listener : listener);

  if (!this._events[type])
    // Optimize the case of one listener. Don't need the extra array object.
    this._events[type] = listener;
  else if (isObject(this._events[type]))
    // If we've already got an array, just append.
    this._events[type].push(listener);
  else
    // Adding the second element, need to change to array.
    this._events[type] = [this._events[type], listener];

  // Check for listener leak
  if (isObject(this._events[type]) && !this._events[type].warned) {
    var m;
    if (!isUndefined(this._maxListeners)) {
      m = this._maxListeners;
    } else {
      m = EventEmitter.defaultMaxListeners;
    }

    if (m && m > 0 && this._events[type].length > m) {
      this._events[type].warned = true;
      console.error('(node) warning: possible EventEmitter memory ' +
                    'leak detected. %d listeners added. ' +
                    'Use emitter.setMaxListeners() to increase limit.',
                    this._events[type].length);
      if (typeof console.trace === 'function') {
        // not supported in IE 10
        console.trace();
      }
    }
  }

  return this;
};

EventEmitter.prototype.on = EventEmitter.prototype.addListener;

EventEmitter.prototype.once = function(type, listener) {
  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  var fired = false;

  function g() {
    this.removeListener(type, g);

    if (!fired) {
      fired = true;
      listener.apply(this, arguments);
    }
  }

  g.listener = listener;
  this.on(type, g);

  return this;
};

// emits a 'removeListener' event iff the listener was removed
EventEmitter.prototype.removeListener = function(type, listener) {
  var list, position, length, i;

  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  if (!this._events || !this._events[type])
    return this;

  list = this._events[type];
  length = list.length;
  position = -1;

  if (list === listener ||
      (isFunction(list.listener) && list.listener === listener)) {
    delete this._events[type];
    if (this._events.removeListener)
      this.emit('removeListener', type, listener);

  } else if (isObject(list)) {
    for (i = length; i-- > 0;) {
      if (list[i] === listener ||
          (list[i].listener && list[i].listener === listener)) {
        position = i;
        break;
      }
    }

    if (position < 0)
      return this;

    if (list.length === 1) {
      list.length = 0;
      delete this._events[type];
    } else {
      list.splice(position, 1);
    }

    if (this._events.removeListener)
      this.emit('removeListener', type, listener);
  }

  return this;
};

EventEmitter.prototype.removeAllListeners = function(type) {
  var key, listeners;

  if (!this._events)
    return this;

  // not listening for removeListener, no need to emit
  if (!this._events.removeListener) {
    if (arguments.length === 0)
      this._events = {};
    else if (this._events[type])
      delete this._events[type];
    return this;
  }

  // emit removeListener for all listeners on all events
  if (arguments.length === 0) {
    for (key in this._events) {
      if (key === 'removeListener') continue;
      this.removeAllListeners(key);
    }
    this.removeAllListeners('removeListener');
    this._events = {};
    return this;
  }

  listeners = this._events[type];

  if (isFunction(listeners)) {
    this.removeListener(type, listeners);
  } else {
    // LIFO order
    while (listeners.length)
      this.removeListener(type, listeners[listeners.length - 1]);
  }
  delete this._events[type];

  return this;
};

EventEmitter.prototype.listeners = function(type) {
  var ret;
  if (!this._events || !this._events[type])
    ret = [];
  else if (isFunction(this._events[type]))
    ret = [this._events[type]];
  else
    ret = this._events[type].slice();
  return ret;
};

EventEmitter.listenerCount = function(emitter, type) {
  var ret;
  if (!emitter._events || !emitter._events[type])
    ret = 0;
  else if (isFunction(emitter._events[type]))
    ret = 1;
  else
    ret = emitter._events[type].length;
  return ret;
};

function isFunction(arg) {
  return typeof arg === 'function';
}

function isNumber(arg) {
  return typeof arg === 'number';
}

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}

function isUndefined(arg) {
  return arg === void 0;
}

},{}],6:[function(require,module,exports){
var http = module.exports;
var EventEmitter = require('events').EventEmitter;
var Request = require('./lib/request');
var url = require('url')

http.request = function (params, cb) {
    if (typeof params === 'string') {
        params = url.parse(params)
    }
    if (!params) params = {};
    if (!params.host && !params.port) {
        params.port = parseInt(window.location.port, 10);
    }
    if (!params.host && params.hostname) {
        params.host = params.hostname;
    }
    
    if (!params.scheme) params.scheme = window.location.protocol.split(':')[0];
    if (!params.host) {
        params.host = window.location.hostname || window.location.host;
    }
    if (/:/.test(params.host)) {
        if (!params.port) {
            params.port = params.host.split(':')[1];
        }
        params.host = params.host.split(':')[0];
    }
    if (!params.port) params.port = params.scheme == 'https' ? 443 : 80;
    
    var req = new Request(new xhrHttp, params);
    if (cb) req.on('response', cb);
    return req;
};

http.get = function (params, cb) {
    params.method = 'GET';
    var req = http.request(params, cb);
    req.end();
    return req;
};

http.Agent = function () {};
http.Agent.defaultMaxSockets = 4;

var xhrHttp = (function () {
    if (typeof window === 'undefined') {
        throw new Error('no window object present');
    }
    else if (window.XMLHttpRequest) {
        return window.XMLHttpRequest;
    }
    else if (window.ActiveXObject) {
        var axs = [
            'Msxml2.XMLHTTP.6.0',
            'Msxml2.XMLHTTP.3.0',
            'Microsoft.XMLHTTP'
        ];
        for (var i = 0; i < axs.length; i++) {
            try {
                var ax = new(window.ActiveXObject)(axs[i]);
                return function () {
                    if (ax) {
                        var ax_ = ax;
                        ax = null;
                        return ax_;
                    }
                    else {
                        return new(window.ActiveXObject)(axs[i]);
                    }
                };
            }
            catch (e) {}
        }
        throw new Error('ajax not supported in this browser')
    }
    else {
        throw new Error('ajax not supported in this browser');
    }
})();

http.STATUS_CODES = {
    100 : 'Continue',
    101 : 'Switching Protocols',
    102 : 'Processing',                 // RFC 2518, obsoleted by RFC 4918
    200 : 'OK',
    201 : 'Created',
    202 : 'Accepted',
    203 : 'Non-Authoritative Information',
    204 : 'No Content',
    205 : 'Reset Content',
    206 : 'Partial Content',
    207 : 'Multi-Status',               // RFC 4918
    300 : 'Multiple Choices',
    301 : 'Moved Permanently',
    302 : 'Moved Temporarily',
    303 : 'See Other',
    304 : 'Not Modified',
    305 : 'Use Proxy',
    307 : 'Temporary Redirect',
    400 : 'Bad Request',
    401 : 'Unauthorized',
    402 : 'Payment Required',
    403 : 'Forbidden',
    404 : 'Not Found',
    405 : 'Method Not Allowed',
    406 : 'Not Acceptable',
    407 : 'Proxy Authentication Required',
    408 : 'Request Time-out',
    409 : 'Conflict',
    410 : 'Gone',
    411 : 'Length Required',
    412 : 'Precondition Failed',
    413 : 'Request Entity Too Large',
    414 : 'Request-URI Too Large',
    415 : 'Unsupported Media Type',
    416 : 'Requested Range Not Satisfiable',
    417 : 'Expectation Failed',
    418 : 'I\'m a teapot',              // RFC 2324
    422 : 'Unprocessable Entity',       // RFC 4918
    423 : 'Locked',                     // RFC 4918
    424 : 'Failed Dependency',          // RFC 4918
    425 : 'Unordered Collection',       // RFC 4918
    426 : 'Upgrade Required',           // RFC 2817
    428 : 'Precondition Required',      // RFC 6585
    429 : 'Too Many Requests',          // RFC 6585
    431 : 'Request Header Fields Too Large',// RFC 6585
    500 : 'Internal Server Error',
    501 : 'Not Implemented',
    502 : 'Bad Gateway',
    503 : 'Service Unavailable',
    504 : 'Gateway Time-out',
    505 : 'HTTP Version Not Supported',
    506 : 'Variant Also Negotiates',    // RFC 2295
    507 : 'Insufficient Storage',       // RFC 4918
    509 : 'Bandwidth Limit Exceeded',
    510 : 'Not Extended',               // RFC 2774
    511 : 'Network Authentication Required' // RFC 6585
};
},{"./lib/request":7,"events":5,"url":26}],7:[function(require,module,exports){
var Stream = require('stream');
var Response = require('./response');
var Base64 = require('Base64');
var inherits = require('inherits');

var Request = module.exports = function (xhr, params) {
    var self = this;
    self.writable = true;
    self.xhr = xhr;
    self.body = [];
    
    self.uri = (params.scheme || 'http') + '://'
        + params.host
        + (params.port ? ':' + params.port : '')
        + (params.path || '/')
    ;
    
    if (typeof params.withCredentials === 'undefined') {
        params.withCredentials = true;
    }

    try { xhr.withCredentials = params.withCredentials }
    catch (e) {}
    
    xhr.open(
        params.method || 'GET',
        self.uri,
        true
    );

    self._headers = {};
    
    if (params.headers) {
        var keys = objectKeys(params.headers);
        for (var i = 0; i < keys.length; i++) {
            var key = keys[i];
            if (!self.isSafeRequestHeader(key)) continue;
            var value = params.headers[key];
            self.setHeader(key, value);
        }
    }
    
    if (params.auth) {
        //basic auth
        this.setHeader('Authorization', 'Basic ' + Base64.btoa(params.auth));
    }

    var res = new Response;
    res.on('close', function () {
        self.emit('close');
    });
    
    res.on('ready', function () {
        self.emit('response', res);
    });
    
    xhr.onreadystatechange = function () {
        // Fix for IE9 bug
        // SCRIPT575: Could not complete the operation due to error c00c023f
        // It happens when a request is aborted, calling the success callback anyway with readyState === 4
        if (xhr.__aborted) return;
        res.handle(xhr);
    };
};

inherits(Request, Stream);

Request.prototype.setHeader = function (key, value) {
    this._headers[key.toLowerCase()] = value
};

Request.prototype.getHeader = function (key) {
    return this._headers[key.toLowerCase()]
};

Request.prototype.removeHeader = function (key) {
    delete this._headers[key.toLowerCase()]
};

Request.prototype.write = function (s) {
    this.body.push(s);
};

Request.prototype.destroy = function (s) {
    this.xhr.__aborted = true;
    this.xhr.abort();
    this.emit('close');
};

Request.prototype.end = function (s) {
    if (s !== undefined) this.body.push(s);

    var keys = objectKeys(this._headers);
    for (var i = 0; i < keys.length; i++) {
        var key = keys[i];
        var value = this._headers[key];
        if (isArray(value)) {
            for (var j = 0; j < value.length; j++) {
                this.xhr.setRequestHeader(key, value[j]);
            }
        }
        else this.xhr.setRequestHeader(key, value)
    }

    if (this.body.length === 0) {
        this.xhr.send('');
    }
    else if (typeof this.body[0] === 'string') {
        this.xhr.send(this.body.join(''));
    }
    else if (isArray(this.body[0])) {
        var body = [];
        for (var i = 0; i < this.body.length; i++) {
            body.push.apply(body, this.body[i]);
        }
        this.xhr.send(body);
    }
    else if (/Array/.test(Object.prototype.toString.call(this.body[0]))) {
        var len = 0;
        for (var i = 0; i < this.body.length; i++) {
            len += this.body[i].length;
        }
        var body = new(this.body[0].constructor)(len);
        var k = 0;
        
        for (var i = 0; i < this.body.length; i++) {
            var b = this.body[i];
            for (var j = 0; j < b.length; j++) {
                body[k++] = b[j];
            }
        }
        this.xhr.send(body);
    }
    else {
        var body = '';
        for (var i = 0; i < this.body.length; i++) {
            body += this.body[i].toString();
        }
        this.xhr.send(body);
    }
};

// Taken from http://dxr.mozilla.org/mozilla/mozilla-central/content/base/src/nsXMLHttpRequest.cpp.html
Request.unsafeHeaders = [
    "accept-charset",
    "accept-encoding",
    "access-control-request-headers",
    "access-control-request-method",
    "connection",
    "content-length",
    "cookie",
    "cookie2",
    "content-transfer-encoding",
    "date",
    "expect",
    "host",
    "keep-alive",
    "origin",
    "referer",
    "te",
    "trailer",
    "transfer-encoding",
    "upgrade",
    "user-agent",
    "via"
];

Request.prototype.isSafeRequestHeader = function (headerName) {
    if (!headerName) return false;
    return indexOf(Request.unsafeHeaders, headerName.toLowerCase()) === -1;
};

var objectKeys = Object.keys || function (obj) {
    var keys = [];
    for (var key in obj) keys.push(key);
    return keys;
};

var isArray = Array.isArray || function (xs) {
    return Object.prototype.toString.call(xs) === '[object Array]';
};

var indexOf = function (xs, x) {
    if (xs.indexOf) return xs.indexOf(x);
    for (var i = 0; i < xs.length; i++) {
        if (xs[i] === x) return i;
    }
    return -1;
};

},{"./response":8,"Base64":2,"inherits":10,"stream":19}],8:[function(require,module,exports){
var Stream = require('stream');
var util = require('util');

var Response = module.exports = function (res) {
    this.offset = 0;
    this.readable = true;
};

util.inherits(Response, Stream);

var capable = {
    streaming : true,
    status2 : true
};

function parseHeaders (res) {
    var lines = res.getAllResponseHeaders().split(/\r?\n/);
    var headers = {};
    for (var i = 0; i < lines.length; i++) {
        var line = lines[i];
        if (line === '') continue;
        
        var m = line.match(/^([^:]+):\s*(.*)/);
        if (m) {
            var key = m[1].toLowerCase(), value = m[2];
            
            if (headers[key] !== undefined) {
            
                if (isArray(headers[key])) {
                    headers[key].push(value);
                }
                else {
                    headers[key] = [ headers[key], value ];
                }
            }
            else {
                headers[key] = value;
            }
        }
        else {
            headers[line] = true;
        }
    }
    return headers;
}

Response.prototype.getResponse = function (xhr) {
    var respType = String(xhr.responseType).toLowerCase();
    if (respType === 'blob') return xhr.responseBlob || xhr.response;
    if (respType === 'arraybuffer') return xhr.response;
    return xhr.responseText;
}

Response.prototype.getHeader = function (key) {
    return this.headers[key.toLowerCase()];
};

Response.prototype.handle = function (res) {
    if (res.readyState === 2 && capable.status2) {
        try {
            this.statusCode = res.status;
            this.headers = parseHeaders(res);
        }
        catch (err) {
            capable.status2 = false;
        }
        
        if (capable.status2) {
            this.emit('ready');
        }
    }
    else if (capable.streaming && res.readyState === 3) {
        try {
            if (!this.statusCode) {
                this.statusCode = res.status;
                this.headers = parseHeaders(res);
                this.emit('ready');
            }
        }
        catch (err) {}
        
        try {
            this._emitData(res);
        }
        catch (err) {
            capable.streaming = false;
        }
    }
    else if (res.readyState === 4) {
        if (!this.statusCode) {
            this.statusCode = res.status;
            this.emit('ready');
        }
        this._emitData(res);
        
        if (res.error) {
            this.emit('error', this.getResponse(res));
        }
        else this.emit('end');
        
        this.emit('close');
    }
};

Response.prototype._emitData = function (res) {
    var respBody = this.getResponse(res);
    if (respBody.toString().match(/ArrayBuffer/)) {
        this.emit('data', new Uint8Array(respBody, this.offset));
        this.offset = respBody.byteLength;
        return;
    }
    if (respBody.length > this.offset) {
        this.emit('data', respBody.slice(this.offset));
        this.offset = respBody.length;
    }
};

var isArray = Array.isArray || function (xs) {
    return Object.prototype.toString.call(xs) === '[object Array]';
};

},{"stream":19,"util":29}],9:[function(require,module,exports){
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
  var e, m
  var eLen = (nBytes * 8) - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var nBits = -7
  var i = isLE ? (nBytes - 1) : 0
  var d = isLE ? -1 : 1
  var s = buffer[offset + i]

  i += d

  e = s & ((1 << (-nBits)) - 1)
  s >>= (-nBits)
  nBits += eLen
  for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}

  m = e & ((1 << (-nBits)) - 1)
  e >>= (-nBits)
  nBits += mLen
  for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}

  if (e === 0) {
    e = 1 - eBias
  } else if (e === eMax) {
    return m ? NaN : ((s ? -1 : 1) * Infinity)
  } else {
    m = m + Math.pow(2, mLen)
    e = e - eBias
  }
  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}

exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
  var e, m, c
  var eLen = (nBytes * 8) - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
  var i = isLE ? 0 : (nBytes - 1)
  var d = isLE ? 1 : -1
  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0

  value = Math.abs(value)

  if (isNaN(value) || value === Infinity) {
    m = isNaN(value) ? 1 : 0
    e = eMax
  } else {
    e = Math.floor(Math.log(value) / Math.LN2)
    if (value * (c = Math.pow(2, -e)) < 1) {
      e--
      c *= 2
    }
    if (e + eBias >= 1) {
      value += rt / c
    } else {
      value += rt * Math.pow(2, 1 - eBias)
    }
    if (value * c >= 2) {
      e++
      c /= 2
    }

    if (e + eBias >= eMax) {
      m = 0
      e = eMax
    } else if (e + eBias >= 1) {
      m = ((value * c) - 1) * Math.pow(2, mLen)
      e = e + eBias
    } else {
      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
      e = 0
    }
  }

  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}

  e = (e << mLen) | m
  eLen += mLen
  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}

  buffer[offset + i - d] |= s * 128
}

},{}],10:[function(require,module,exports){
if (typeof Object.create === 'function') {
  // implementation from standard node.js 'util' module
  module.exports = function inherits(ctor, superCtor) {
    if (superCtor) {
      ctor.super_ = superCtor
      ctor.prototype = Object.create(superCtor.prototype, {
        constructor: {
          value: ctor,
          enumerable: false,
          writable: true,
          configurable: true
        }
      })
    }
  };
} else {
  // old school shim for old browsers
  module.exports = function inherits(ctor, superCtor) {
    if (superCtor) {
      ctor.super_ = superCtor
      var TempCtor = function () {}
      TempCtor.prototype = superCtor.prototype
      ctor.prototype = new TempCtor()
      ctor.prototype.constructor = ctor
    }
  }
}

},{}],11:[function(require,module,exports){
var hasMap = typeof Map === 'function' && Map.prototype;
var mapSizeDescriptor = Object.getOwnPropertyDescriptor && hasMap ? Object.getOwnPropertyDescriptor(Map.prototype, 'size') : null;
var mapSize = hasMap && mapSizeDescriptor && typeof mapSizeDescriptor.get === 'function' ? mapSizeDescriptor.get : null;
var mapForEach = hasMap && Map.prototype.forEach;
var hasSet = typeof Set === 'function' && Set.prototype;
var setSizeDescriptor = Object.getOwnPropertyDescriptor && hasSet ? Object.getOwnPropertyDescriptor(Set.prototype, 'size') : null;
var setSize = hasSet && setSizeDescriptor && typeof setSizeDescriptor.get === 'function' ? setSizeDescriptor.get : null;
var setForEach = hasSet && Set.prototype.forEach;
var hasWeakMap = typeof WeakMap === 'function' && WeakMap.prototype;
var weakMapHas = hasWeakMap ? WeakMap.prototype.has : null;
var hasWeakSet = typeof WeakSet === 'function' && WeakSet.prototype;
var weakSetHas = hasWeakSet ? WeakSet.prototype.has : null;
var booleanValueOf = Boolean.prototype.valueOf;
var objectToString = Object.prototype.toString;
var match = String.prototype.match;
var bigIntValueOf = typeof BigInt === 'function' ? BigInt.prototype.valueOf : null;

var inspectCustom = require('./util.inspect').custom;
var inspectSymbol = inspectCustom && isSymbol(inspectCustom) ? inspectCustom : null;

module.exports = function inspect_(obj, options, depth, seen) {
    var opts = options || {};

    if (has(opts, 'quoteStyle') && (opts.quoteStyle !== 'single' && opts.quoteStyle !== 'double')) {
        throw new TypeError('option "quoteStyle" must be "single" or "double"');
    }

    if (typeof obj === 'undefined') {
        return 'undefined';
    }
    if (obj === null) {
        return 'null';
    }
    if (typeof obj === 'boolean') {
        return obj ? 'true' : 'false';
    }

    if (typeof obj === 'string') {
        return inspectString(obj, opts);
    }
    if (typeof obj === 'number') {
        if (obj === 0) {
            return Infinity / obj > 0 ? '0' : '-0';
        }
        return String(obj);
    }
    if (typeof obj === 'bigint') { // eslint-disable-line valid-typeof
        return String(obj) + 'n';
    }

    var maxDepth = typeof opts.depth === 'undefined' ? 5 : opts.depth;
    if (typeof depth === 'undefined') { depth = 0; }
    if (depth >= maxDepth && maxDepth > 0 && typeof obj === 'object') {
        return '[Object]';
    }

    if (typeof seen === 'undefined') {
        seen = [];
    } else if (indexOf(seen, obj) >= 0) {
        return '[Circular]';
    }

    function inspect(value, from) {
        if (from) {
            seen = seen.slice();
            seen.push(from);
        }
        return inspect_(value, opts, depth + 1, seen);
    }

    if (typeof obj === 'function') {
        var name = nameOf(obj);
        return '[Function' + (name ? ': ' + name : '') + ']';
    }
    if (isSymbol(obj)) {
        var symString = Symbol.prototype.toString.call(obj);
        return typeof obj === 'object' ? markBoxed(symString) : symString;
    }
    if (isElement(obj)) {
        var s = '<' + String(obj.nodeName).toLowerCase();
        var attrs = obj.attributes || [];
        for (var i = 0; i < attrs.length; i++) {
            s += ' ' + attrs[i].name + '=' + wrapQuotes(quote(attrs[i].value), 'double', opts);
        }
        s += '>';
        if (obj.childNodes && obj.childNodes.length) { s += '...'; }
        s += '</' + String(obj.nodeName).toLowerCase() + '>';
        return s;
    }
    if (isArray(obj)) {
        if (obj.length === 0) { return '[]'; }
        return '[ ' + arrObjKeys(obj, inspect).join(', ') + ' ]';
    }
    if (isError(obj)) {
        var parts = arrObjKeys(obj, inspect);
        if (parts.length === 0) { return '[' + String(obj) + ']'; }
        return '{ [' + String(obj) + '] ' + parts.join(', ') + ' }';
    }
    if (typeof obj === 'object') {
        if (inspectSymbol && typeof obj[inspectSymbol] === 'function') {
            return obj[inspectSymbol]();
        } else if (typeof obj.inspect === 'function') {
            return obj.inspect();
        }
    }
    if (isMap(obj)) {
        var mapParts = [];
        mapForEach.call(obj, function (value, key) {
            mapParts.push(inspect(key, obj) + ' => ' + inspect(value, obj));
        });
        return collectionOf('Map', mapSize.call(obj), mapParts);
    }
    if (isSet(obj)) {
        var setParts = [];
        setForEach.call(obj, function (value) {
            setParts.push(inspect(value, obj));
        });
        return collectionOf('Set', setSize.call(obj), setParts);
    }
    if (isWeakMap(obj)) {
        return weakCollectionOf('WeakMap');
    }
    if (isWeakSet(obj)) {
        return weakCollectionOf('WeakSet');
    }
    if (isNumber(obj)) {
        return markBoxed(inspect(Number(obj)));
    }
    if (isBigInt(obj)) {
        return markBoxed(inspect(bigIntValueOf.call(obj)));
    }
    if (isBoolean(obj)) {
        return markBoxed(booleanValueOf.call(obj));
    }
    if (isString(obj)) {
        return markBoxed(inspect(String(obj)));
    }
    if (!isDate(obj) && !isRegExp(obj)) {
        var xs = arrObjKeys(obj, inspect);
        if (xs.length === 0) { return '{}'; }
        return '{ ' + xs.join(', ') + ' }';
    }
    return String(obj);
};

function wrapQuotes(s, defaultStyle, opts) {
    var quoteChar = (opts.quoteStyle || defaultStyle) === 'double' ? '"' : "'";
    return quoteChar + s + quoteChar;
}

function quote(s) {
    return String(s).replace(/"/g, '&quot;');
}

function isArray(obj) { return toStr(obj) === '[object Array]'; }
function isDate(obj) { return toStr(obj) === '[object Date]'; }
function isRegExp(obj) { return toStr(obj) === '[object RegExp]'; }
function isError(obj) { return toStr(obj) === '[object Error]'; }
function isSymbol(obj) { return toStr(obj) === '[object Symbol]'; }
function isString(obj) { return toStr(obj) === '[object String]'; }
function isNumber(obj) { return toStr(obj) === '[object Number]'; }
function isBigInt(obj) { return toStr(obj) === '[object BigInt]'; }
function isBoolean(obj) { return toStr(obj) === '[object Boolean]'; }

var hasOwn = Object.prototype.hasOwnProperty || function (key) { return key in this; };
function has(obj, key) {
    return hasOwn.call(obj, key);
}

function toStr(obj) {
    return objectToString.call(obj);
}

function nameOf(f) {
    if (f.name) { return f.name; }
    var m = match.call(f, /^function\s*([\w$]+)/);
    if (m) { return m[1]; }
    return null;
}

function indexOf(xs, x) {
    if (xs.indexOf) { return xs.indexOf(x); }
    for (var i = 0, l = xs.length; i < l; i++) {
        if (xs[i] === x) { return i; }
    }
    return -1;
}

function isMap(x) {
    if (!mapSize || !x || typeof x !== 'object') {
        return false;
    }
    try {
        mapSize.call(x);
        try {
            setSize.call(x);
        } catch (s) {
            return true;
        }
        return x instanceof Map; // core-js workaround, pre-v2.5.0
    } catch (e) {}
    return false;
}

function isWeakMap(x) {
    if (!weakMapHas || !x || typeof x !== 'object') {
        return false;
    }
    try {
        weakMapHas.call(x, weakMapHas);
        try {
            weakSetHas.call(x, weakSetHas);
        } catch (s) {
            return true;
        }
        return x instanceof WeakMap; // core-js workaround, pre-v2.5.0
    } catch (e) {}
    return false;
}

function isSet(x) {
    if (!setSize || !x || typeof x !== 'object') {
        return false;
    }
    try {
        setSize.call(x);
        try {
            mapSize.call(x);
        } catch (m) {
            return true;
        }
        return x instanceof Set; // core-js workaround, pre-v2.5.0
    } catch (e) {}
    return false;
}

function isWeakSet(x) {
    if (!weakSetHas || !x || typeof x !== 'object') {
        return false;
    }
    try {
        weakSetHas.call(x, weakSetHas);
        try {
            weakMapHas.call(x, weakMapHas);
        } catch (s) {
            return true;
        }
        return x instanceof WeakSet; // core-js workaround, pre-v2.5.0
    } catch (e) {}
    return false;
}

function isElement(x) {
    if (!x || typeof x !== 'object') { return false; }
    if (typeof HTMLElement !== 'undefined' && x instanceof HTMLElement) {
        return true;
    }
    return typeof x.nodeName === 'string' && typeof x.getAttribute === 'function';
}

function inspectString(str, opts) {
    // eslint-disable-next-line no-control-regex
    var s = str.replace(/(['\\])/g, '\\$1').replace(/[\x00-\x1f]/g, lowbyte);
    return wrapQuotes(s, 'single', opts);
}

function lowbyte(c) {
    var n = c.charCodeAt(0);
    var x = {
        8: 'b', 9: 't', 10: 'n', 12: 'f', 13: 'r'
    }[n];
    if (x) { return '\\' + x; }
    return '\\x' + (n < 0x10 ? '0' : '') + n.toString(16);
}

function markBoxed(str) {
    return 'Object(' + str + ')';
}

function weakCollectionOf(type) {
    return type + ' { ? }';
}

function collectionOf(type, size, entries) {
    return type + ' (' + size + ') {' + entries.join(', ') + '}';
}

function arrObjKeys(obj, inspect) {
    var isArr = isArray(obj);
    var xs = [];
    if (isArr) {
        xs.length = obj.length;
        for (var i = 0; i < obj.length; i++) {
            xs[i] = has(obj, i) ? inspect(obj[i], obj) : '';
        }
    }
    for (var key in obj) { // eslint-disable-line no-restricted-syntax
        if (!has(obj, key)) { continue; } // eslint-disable-line no-restricted-syntax, no-continue
        if (isArr && String(Number(key)) === key && key < obj.length) { continue; } // eslint-disable-line no-restricted-syntax, no-continue
        if ((/[^\w$]/).test(key)) {
            xs.push(inspect(key, obj) + ': ' + inspect(obj[key], obj));
        } else {
            xs.push(key + ': ' + inspect(obj[key], obj));
        }
    }
    return xs;
}

},{"./util.inspect":12}],12:[function(require,module,exports){
module.exports = require('util').inspect;

},{"util":29}],13:[function(require,module,exports){
// shim for using process in browser

var process = module.exports = {};

process.nextTick = (function () {
    var canSetImmediate = typeof window !== 'undefined'
    && window.setImmediate;
    var canPost = typeof window !== 'undefined'
    && window.postMessage && window.addEventListener
    ;

    if (canSetImmediate) {
        return function (f) { return window.setImmediate(f) };
    }

    if (canPost) {
        var queue = [];
        window.addEventListener('message', function (ev) {
            var source = ev.source;
            if ((source === window || source === null) && ev.data === 'process-tick') {
                ev.stopPropagation();
                if (queue.length > 0) {
                    var fn = queue.shift();
                    fn();
                }
            }
        }, true);

        return function nextTick(fn) {
            queue.push(fn);
            window.postMessage('process-tick', '*');
        };
    }

    return function nextTick(fn) {
        setTimeout(fn, 0);
    };
})();

process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];

function noop() {}

process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;

process.binding = function (name) {
    throw new Error('process.binding is not supported');
}

// TODO(shtylman)
process.cwd = function () { return '/' };
process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
};

},{}],14:[function(require,module,exports){
(function (global){
/*! http://mths.be/punycode v1.2.4 by @mathias */
;(function(root) {

	/** Detect free variables */
	var freeExports = typeof exports == 'object' && exports;
	var freeModule = typeof module == 'object' && module &&
		module.exports == freeExports && module;
	var freeGlobal = typeof global == 'object' && global;
	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
		root = freeGlobal;
	}

	/**
	 * The `punycode` object.
	 * @name punycode
	 * @type Object
	 */
	var punycode,

	/** Highest positive signed 32-bit float value */
	maxInt = 2147483647, // aka. 0x7FFFFFFF or 2^31-1

	/** Bootstring parameters */
	base = 36,
	tMin = 1,
	tMax = 26,
	skew = 38,
	damp = 700,
	initialBias = 72,
	initialN = 128, // 0x80
	delimiter = '-', // '\x2D'

	/** Regular expressions */
	regexPunycode = /^xn--/,
	regexNonASCII = /[^ -~]/, // unprintable ASCII chars + non-ASCII chars
	regexSeparators = /\x2E|\u3002|\uFF0E|\uFF61/g, // RFC 3490 separators

	/** Error messages */
	errors = {
		'overflow': 'Overflow: input needs wider integers to process',
		'not-basic': 'Illegal input >= 0x80 (not a basic code point)',
		'invalid-input': 'Invalid input'
	},

	/** Convenience shortcuts */
	baseMinusTMin = base - tMin,
	floor = Math.floor,
	stringFromCharCode = String.fromCharCode,

	/** Temporary variable */
	key;

	/*--------------------------------------------------------------------------*/

	/**
	 * A generic error utility function.
	 * @private
	 * @param {String} type The error type.
	 * @returns {Error} Throws a `RangeError` with the applicable error message.
	 */
	function error(type) {
		throw RangeError(errors[type]);
	}

	/**
	 * A generic `Array#map` utility function.
	 * @private
	 * @param {Array} array The array to iterate over.
	 * @param {Function} callback The function that gets called for every array
	 * item.
	 * @returns {Array} A new array of values returned by the callback function.
	 */
	function map(array, fn) {
		var length = array.length;
		while (length--) {
			array[length] = fn(array[length]);
		}
		return array;
	}

	/**
	 * A simple `Array#map`-like wrapper to work with domain name strings.
	 * @private
	 * @param {String} domain The domain name.
	 * @param {Function} callback The function that gets called for every
	 * character.
	 * @returns {Array} A new string of characters returned by the callback
	 * function.
	 */
	function mapDomain(string, fn) {
		return map(string.split(regexSeparators), fn).join('.');
	}

	/**
	 * Creates an array containing the numeric code points of each Unicode
	 * character in the string. While JavaScript uses UCS-2 internally,
	 * this function will convert a pair of surrogate halves (each of which
	 * UCS-2 exposes as separate characters) into a single code point,
	 * matching UTF-16.
	 * @see `punycode.ucs2.encode`
	 * @see <http://mathiasbynens.be/notes/javascript-encoding>
	 * @memberOf punycode.ucs2
	 * @name decode
	 * @param {String} string The Unicode input string (UCS-2).
	 * @returns {Array} The new array of code points.
	 */
	function ucs2decode(string) {
		var output = [],
		    counter = 0,
		    length = string.length,
		    value,
		    extra;
		while (counter < length) {
			value = string.charCodeAt(counter++);
			if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
				// high surrogate, and there is a next character
				extra = string.charCodeAt(counter++);
				if ((extra & 0xFC00) == 0xDC00) { // low surrogate
					output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
				} else {
					// unmatched surrogate; only append this code unit, in case the next
					// code unit is the high surrogate of a surrogate pair
					output.push(value);
					counter--;
				}
			} else {
				output.push(value);
			}
		}
		return output;
	}

	/**
	 * Creates a string based on an array of numeric code points.
	 * @see `punycode.ucs2.decode`
	 * @memberOf punycode.ucs2
	 * @name encode
	 * @param {Array} codePoints The array of numeric code points.
	 * @returns {String} The new Unicode string (UCS-2).
	 */
	function ucs2encode(array) {
		return map(array, function(value) {
			var output = '';
			if (value > 0xFFFF) {
				value -= 0x10000;
				output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
				value = 0xDC00 | value & 0x3FF;
			}
			output += stringFromCharCode(value);
			return output;
		}).join('');
	}

	/**
	 * Converts a basic code point into a digit/integer.
	 * @see `digitToBasic()`
	 * @private
	 * @param {Number} codePoint The basic numeric code point value.
	 * @returns {Number} The numeric value of a basic code point (for use in
	 * representing integers) in the range `0` to `base - 1`, or `base` if
	 * the code point does not represent a value.
	 */
	function basicToDigit(codePoint) {
		if (codePoint - 48 < 10) {
			return codePoint - 22;
		}
		if (codePoint - 65 < 26) {
			return codePoint - 65;
		}
		if (codePoint - 97 < 26) {
			return codePoint - 97;
		}
		return base;
	}

	/**
	 * Converts a digit/integer into a basic code point.
	 * @see `basicToDigit()`
	 * @private
	 * @param {Number} digit The numeric value of a basic code point.
	 * @returns {Number} The basic code point whose value (when used for
	 * representing integers) is `digit`, which needs to be in the range
	 * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
	 * used; else, the lowercase form is used. The behavior is undefined
	 * if `flag` is non-zero and `digit` has no uppercase form.
	 */
	function digitToBasic(digit, flag) {
		//  0..25 map to ASCII a..z or A..Z
		// 26..35 map to ASCII 0..9
		return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
	}

	/**
	 * Bias adaptation function as per section 3.4 of RFC 3492.
	 * http://tools.ietf.org/html/rfc3492#section-3.4
	 * @private
	 */
	function adapt(delta, numPoints, firstTime) {
		var k = 0;
		delta = firstTime ? floor(delta / damp) : delta >> 1;
		delta += floor(delta / numPoints);
		for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) {
			delta = floor(delta / baseMinusTMin);
		}
		return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));
	}

	/**
	 * Converts a Punycode string of ASCII-only symbols to a string of Unicode
	 * symbols.
	 * @memberOf punycode
	 * @param {String} input The Punycode string of ASCII-only symbols.
	 * @returns {String} The resulting string of Unicode symbols.
	 */
	function decode(input) {
		// Don't use UCS-2
		var output = [],
		    inputLength = input.length,
		    out,
		    i = 0,
		    n = initialN,
		    bias = initialBias,
		    basic,
		    j,
		    index,
		    oldi,
		    w,
		    k,
		    digit,
		    t,
		    /** Cached calculation results */
		    baseMinusT;

		// Handle the basic code points: let `basic` be the number of input code
		// points before the last delimiter, or `0` if there is none, then copy
		// the first basic code points to the output.

		basic = input.lastIndexOf(delimiter);
		if (basic < 0) {
			basic = 0;
		}

		for (j = 0; j < basic; ++j) {
			// if it's not a basic code point
			if (input.charCodeAt(j) >= 0x80) {
				error('not-basic');
			}
			output.push(input.charCodeAt(j));
		}

		// Main decoding loop: start just after the last delimiter if any basic code
		// points were copied; start at the beginning otherwise.

		for (index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) {

			// `index` is the index of the next character to be consumed.
			// Decode a generalized variable-length integer into `delta`,
			// which gets added to `i`. The overflow checking is easier
			// if we increase `i` as we go, then subtract off its starting
			// value at the end to obtain `delta`.
			for (oldi = i, w = 1, k = base; /* no condition */; k += base) {

				if (index >= inputLength) {
					error('invalid-input');
				}

				digit = basicToDigit(input.charCodeAt(index++));

				if (digit >= base || digit > floor((maxInt - i) / w)) {
					error('overflow');
				}

				i += digit * w;
				t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);

				if (digit < t) {
					break;
				}

				baseMinusT = base - t;
				if (w > floor(maxInt / baseMinusT)) {
					error('overflow');
				}

				w *= baseMinusT;

			}

			out = output.length + 1;
			bias = adapt(i - oldi, out, oldi == 0);

			// `i` was supposed to wrap around from `out` to `0`,
			// incrementing `n` each time, so we'll fix that now:
			if (floor(i / out) > maxInt - n) {
				error('overflow');
			}

			n += floor(i / out);
			i %= out;

			// Insert `n` at position `i` of the output
			output.splice(i++, 0, n);

		}

		return ucs2encode(output);
	}

	/**
	 * Converts a string of Unicode symbols to a Punycode string of ASCII-only
	 * symbols.
	 * @memberOf punycode
	 * @param {String} input The string of Unicode symbols.
	 * @returns {String} The resulting Punycode string of ASCII-only symbols.
	 */
	function encode(input) {
		var n,
		    delta,
		    handledCPCount,
		    basicLength,
		    bias,
		    j,
		    m,
		    q,
		    k,
		    t,
		    currentValue,
		    output = [],
		    /** `inputLength` will hold the number of code points in `input`. */
		    inputLength,
		    /** Cached calculation results */
		    handledCPCountPlusOne,
		    baseMinusT,
		    qMinusT;

		// Convert the input in UCS-2 to Unicode
		input = ucs2decode(input);

		// Cache the length
		inputLength = input.length;

		// Initialize the state
		n = initialN;
		delta = 0;
		bias = initialBias;

		// Handle the basic code points
		for (j = 0; j < inputLength; ++j) {
			currentValue = input[j];
			if (currentValue < 0x80) {
				output.push(stringFromCharCode(currentValue));
			}
		}

		handledCPCount = basicLength = output.length;

		// `handledCPCount` is the number of code points that have been handled;
		// `basicLength` is the number of basic code points.

		// Finish the basic string - if it is not empty - with a delimiter
		if (basicLength) {
			output.push(delimiter);
		}

		// Main encoding loop:
		while (handledCPCount < inputLength) {

			// All non-basic code points < n have been handled already. Find the next
			// larger one:
			for (m = maxInt, j = 0; j < inputLength; ++j) {
				currentValue = input[j];
				if (currentValue >= n && currentValue < m) {
					m = currentValue;
				}
			}

			// Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
			// but guard against overflow
			handledCPCountPlusOne = handledCPCount + 1;
			if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
				error('overflow');
			}

			delta += (m - n) * handledCPCountPlusOne;
			n = m;

			for (j = 0; j < inputLength; ++j) {
				currentValue = input[j];

				if (currentValue < n && ++delta > maxInt) {
					error('overflow');
				}

				if (currentValue == n) {
					// Represent delta as a generalized variable-length integer
					for (q = delta, k = base; /* no condition */; k += base) {
						t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
						if (q < t) {
							break;
						}
						qMinusT = q - t;
						baseMinusT = base - t;
						output.push(
							stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0))
						);
						q = floor(qMinusT / baseMinusT);
					}

					output.push(stringFromCharCode(digitToBasic(q, 0)));
					bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);
					delta = 0;
					++handledCPCount;
				}
			}

			++delta;
			++n;

		}
		return output.join('');
	}

	/**
	 * Converts a Punycode string representing a domain name to Unicode. Only the
	 * Punycoded parts of the domain name will be converted, i.e. it doesn't
	 * matter if you call it on a string that has already been converted to
	 * Unicode.
	 * @memberOf punycode
	 * @param {String} domain The Punycode domain name to convert to Unicode.
	 * @returns {String} The Unicode representation of the given Punycode
	 * string.
	 */
	function toUnicode(domain) {
		return mapDomain(domain, function(string) {
			return regexPunycode.test(string)
				? decode(string.slice(4).toLowerCase())
				: string;
		});
	}

	/**
	 * Converts a Unicode string representing a domain name to Punycode. Only the
	 * non-ASCII parts of the domain name will be converted, i.e. it doesn't
	 * matter if you call it with a domain that's already in ASCII.
	 * @memberOf punycode
	 * @param {String} domain The domain name to convert, as a Unicode string.
	 * @returns {String} The Punycode representation of the given domain name.
	 */
	function toASCII(domain) {
		return mapDomain(domain, function(string) {
			return regexNonASCII.test(string)
				? 'xn--' + encode(string)
				: string;
		});
	}

	/*--------------------------------------------------------------------------*/

	/** Define the public API */
	punycode = {
		/**
		 * A string representing the current Punycode.js version number.
		 * @memberOf punycode
		 * @type String
		 */
		'version': '1.2.4',
		/**
		 * An object of methods to convert from JavaScript's internal character
		 * representation (UCS-2) to Unicode code points, and back.
		 * @see <http://mathiasbynens.be/notes/javascript-encoding>
		 * @memberOf punycode
		 * @type Object
		 */
		'ucs2': {
			'decode': ucs2decode,
			'encode': ucs2encode
		},
		'decode': decode,
		'encode': encode,
		'toASCII': toASCII,
		'toUnicode': toUnicode
	};

	/** Expose `punycode` */
	// Some AMD build optimizers, like r.js, check for specific condition patterns
	// like the following:
	if (
		typeof define == 'function' &&
		typeof define.amd == 'object' &&
		define.amd
	) {
		define('punycode', function() {
			return punycode;
		});
	} else if (freeExports && !freeExports.nodeType) {
		if (freeModule) { // in Node.js or RingoJS v0.8.0+
			freeModule.exports = punycode;
		} else { // in Narwhal or RingoJS v0.7.0-
			for (key in punycode) {
				punycode.hasOwnProperty(key) && (freeExports[key] = punycode[key]);
			}
		}
	} else { // in Rhino or a web browser
		root.punycode = punycode;
	}

}(this));

}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],15:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';

// If obj.hasOwnProperty has been overridden, then calling
// obj.hasOwnProperty(prop) will break.
// See: https://github.com/joyent/node/issues/1707
function hasOwnProperty(obj, prop) {
  return Object.prototype.hasOwnProperty.call(obj, prop);
}

module.exports = function(qs, sep, eq, options) {
  sep = sep || '&';
  eq = eq || '=';
  var obj = {};

  if (typeof qs !== 'string' || qs.length === 0) {
    return obj;
  }

  var regexp = /\+/g;
  qs = qs.split(sep);

  var maxKeys = 1000;
  if (options && typeof options.maxKeys === 'number') {
    maxKeys = options.maxKeys;
  }

  var len = qs.length;
  // maxKeys <= 0 means that we should not limit keys count
  if (maxKeys > 0 && len > maxKeys) {
    len = maxKeys;
  }

  for (var i = 0; i < len; ++i) {
    var x = qs[i].replace(regexp, '%20'),
        idx = x.indexOf(eq),
        kstr, vstr, k, v;

    if (idx >= 0) {
      kstr = x.substr(0, idx);
      vstr = x.substr(idx + 1);
    } else {
      kstr = x;
      vstr = '';
    }

    k = decodeURIComponent(kstr);
    v = decodeURIComponent(vstr);

    if (!hasOwnProperty(obj, k)) {
      obj[k] = v;
    } else if (isArray(obj[k])) {
      obj[k].push(v);
    } else {
      obj[k] = [obj[k], v];
    }
  }

  return obj;
};

var isArray = Array.isArray || function (xs) {
  return Object.prototype.toString.call(xs) === '[object Array]';
};

},{}],16:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';

var stringifyPrimitive = function(v) {
  switch (typeof v) {
    case 'string':
      return v;

    case 'boolean':
      return v ? 'true' : 'false';

    case 'number':
      return isFinite(v) ? v : '';

    default:
      return '';
  }
};

module.exports = function(obj, sep, eq, name) {
  sep = sep || '&';
  eq = eq || '=';
  if (obj === null) {
    obj = undefined;
  }

  if (typeof obj === 'object') {
    return map(objectKeys(obj), function(k) {
      var ks = encodeURIComponent(stringifyPrimitive(k)) + eq;
      if (isArray(obj[k])) {
        return obj[k].map(function(v) {
          return ks + encodeURIComponent(stringifyPrimitive(v));
        }).join(sep);
      } else {
        return ks + encodeURIComponent(stringifyPrimitive(obj[k]));
      }
    }).join(sep);

  }

  if (!name) return '';
  return encodeURIComponent(stringifyPrimitive(name)) + eq +
         encodeURIComponent(stringifyPrimitive(obj));
};

var isArray = Array.isArray || function (xs) {
  return Object.prototype.toString.call(xs) === '[object Array]';
};

function map (xs, f) {
  if (xs.map) return xs.map(f);
  var res = [];
  for (var i = 0; i < xs.length; i++) {
    res.push(f(xs[i], i));
  }
  return res;
}

var objectKeys = Object.keys || function (obj) {
  var res = [];
  for (var key in obj) {
    if (Object.prototype.hasOwnProperty.call(obj, key)) res.push(key);
  }
  return res;
};

},{}],17:[function(require,module,exports){
'use strict';

exports.decode = exports.parse = require('./decode');
exports.encode = exports.stringify = require('./encode');

},{"./decode":15,"./encode":16}],18:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// a duplex stream is just a stream that is both readable and writable.
// Since JS doesn't have multiple prototypal inheritance, this class
// prototypally inherits from Readable, and then parasitically from
// Writable.

module.exports = Duplex;
var inherits = require('inherits');
var setImmediate = require('process/browser.js').nextTick;
var Readable = require('./readable.js');
var Writable = require('./writable.js');

inherits(Duplex, Readable);

Duplex.prototype.write = Writable.prototype.write;
Duplex.prototype.end = Writable.prototype.end;
Duplex.prototype._write = Writable.prototype._write;

function Duplex(options) {
  if (!(this instanceof Duplex))
    return new Duplex(options);

  Readable.call(this, options);
  Writable.call(this, options);

  if (options && options.readable === false)
    this.readable = false;

  if (options && options.writable === false)
    this.writable = false;

  this.allowHalfOpen = true;
  if (options && options.allowHalfOpen === false)
    this.allowHalfOpen = false;

  this.once('end', onend);
}

// the no-half-open enforcer
function onend() {
  // if we allow half-open state, or if the writable side ended,
  // then we're ok.
  if (this.allowHalfOpen || this._writableState.ended)
    return;

  // no more data can be written.
  // But allow more writes to happen in this tick.
  var self = this;
  setImmediate(function () {
    self.end();
  });
}

},{"./readable.js":22,"./writable.js":24,"inherits":10,"process/browser.js":20}],19:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

module.exports = Stream;

var EE = require('events').EventEmitter;
var inherits = require('inherits');

inherits(Stream, EE);
Stream.Readable = require('./readable.js');
Stream.Writable = require('./writable.js');
Stream.Duplex = require('./duplex.js');
Stream.Transform = require('./transform.js');
Stream.PassThrough = require('./passthrough.js');

// Backwards-compat with node 0.4.x
Stream.Stream = Stream;



// old-style streams.  Note that the pipe method (the only relevant
// part of this class) is overridden in the Readable class.

function Stream() {
  EE.call(this);
}

Stream.prototype.pipe = function(dest, options) {
  var source = this;

  function ondata(chunk) {
    if (dest.writable) {
      if (false === dest.write(chunk) && source.pause) {
        source.pause();
      }
    }
  }

  source.on('data', ondata);

  function ondrain() {
    if (source.readable && source.resume) {
      source.resume();
    }
  }

  dest.on('drain', ondrain);

  // If the 'end' option is not supplied, dest.end() will be called when
  // source gets the 'end' or 'close' events.  Only dest.end() once.
  if (!dest._isStdio && (!options || options.end !== false)) {
    source.on('end', onend);
    source.on('close', onclose);
  }

  var didOnEnd = false;
  function onend() {
    if (didOnEnd) return;
    didOnEnd = true;

    dest.end();
  }


  function onclose() {
    if (didOnEnd) return;
    didOnEnd = true;

    if (typeof dest.destroy === 'function') dest.destroy();
  }

  // don't leave dangling pipes when there are errors.
  function onerror(er) {
    cleanup();
    if (EE.listenerCount(this, 'error') === 0) {
      throw er; // Unhandled stream error in pipe.
    }
  }

  source.on('error', onerror);
  dest.on('error', onerror);

  // remove all the event listeners that were added.
  function cleanup() {
    source.removeListener('data', ondata);
    dest.removeListener('drain', ondrain);

    source.removeListener('end', onend);
    source.removeListener('close', onclose);

    source.removeListener('error', onerror);
    dest.removeListener('error', onerror);

    source.removeListener('end', cleanup);
    source.removeListener('close', cleanup);

    dest.removeListener('close', cleanup);
  }

  source.on('end', cleanup);
  source.on('close', cleanup);

  dest.on('close', cleanup);

  dest.emit('pipe', source);

  // Allow for unix-like usage: A.pipe(B).pipe(C)
  return dest;
};

},{"./duplex.js":18,"./passthrough.js":21,"./readable.js":22,"./transform.js":23,"./writable.js":24,"events":5,"inherits":10}],20:[function(require,module,exports){
// shim for using process in browser

var process = module.exports = {};

process.nextTick = (function () {
    var canSetImmediate = typeof window !== 'undefined'
    && window.setImmediate;
    var canPost = typeof window !== 'undefined'
    && window.postMessage && window.addEventListener
    ;

    if (canSetImmediate) {
        return function (f) { return window.setImmediate(f) };
    }

    if (canPost) {
        var queue = [];
        window.addEventListener('message', function (ev) {
            var source = ev.source;
            if ((source === window || source === null) && ev.data === 'process-tick') {
                ev.stopPropagation();
                if (queue.length > 0) {
                    var fn = queue.shift();
                    fn();
                }
            }
        }, true);

        return function nextTick(fn) {
            queue.push(fn);
            window.postMessage('process-tick', '*');
        };
    }

    return function nextTick(fn) {
        setTimeout(fn, 0);
    };
})();

process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];

process.binding = function (name) {
    throw new Error('process.binding is not supported');
}

// TODO(shtylman)
process.cwd = function () { return '/' };
process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
};

},{}],21:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// a passthrough stream.
// basically just the most minimal sort of Transform stream.
// Every written chunk gets output as-is.

module.exports = PassThrough;

var Transform = require('./transform.js');
var inherits = require('inherits');
inherits(PassThrough, Transform);

function PassThrough(options) {
  if (!(this instanceof PassThrough))
    return new PassThrough(options);

  Transform.call(this, options);
}

PassThrough.prototype._transform = function(chunk, encoding, cb) {
  cb(null, chunk);
};

},{"./transform.js":23,"inherits":10}],22:[function(require,module,exports){
(function (process){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

module.exports = Readable;
Readable.ReadableState = ReadableState;

var EE = require('events').EventEmitter;
var Stream = require('./index.js');
var Buffer = require('buffer').Buffer;
var setImmediate = require('process/browser.js').nextTick;
var StringDecoder;

var inherits = require('inherits');
inherits(Readable, Stream);

function ReadableState(options, stream) {
  options = options || {};

  // the point at which it stops calling _read() to fill the buffer
  // Note: 0 is a valid value, means "don't call _read preemptively ever"
  var hwm = options.highWaterMark;
  this.highWaterMark = (hwm || hwm === 0) ? hwm : 16 * 1024;

  // cast to ints.
  this.highWaterMark = ~~this.highWaterMark;

  this.buffer = [];
  this.length = 0;
  this.pipes = null;
  this.pipesCount = 0;
  this.flowing = false;
  this.ended = false;
  this.endEmitted = false;
  this.reading = false;

  // In streams that never have any data, and do push(null) right away,
  // the consumer can miss the 'end' event if they do some I/O before
  // consuming the stream.  So, we don't emit('end') until some reading
  // happens.
  this.calledRead = false;

  // a flag to be able to tell if the onwrite cb is called immediately,
  // or on a later tick.  We set this to true at first, becuase any
  // actions that shouldn't happen until "later" should generally also
  // not happen before the first write call.
  this.sync = true;

  // whenever we return null, then we set a flag to say
  // that we're awaiting a 'readable' event emission.
  this.needReadable = false;
  this.emittedReadable = false;
  this.readableListening = false;


  // object stream flag. Used to make read(n) ignore n and to
  // make all the buffer merging and length checks go away
  this.objectMode = !!options.objectMode;

  // Crypto is kind of old and crusty.  Historically, its default string
  // encoding is 'binary' so we have to make this configurable.
  // Everything else in the universe uses 'utf8', though.
  this.defaultEncoding = options.defaultEncoding || 'utf8';

  // when piping, we only care about 'readable' events that happen
  // after read()ing all the bytes and not getting any pushback.
  this.ranOut = false;

  // the number of writers that are awaiting a drain event in .pipe()s
  this.awaitDrain = 0;

  // if true, a maybeReadMore has been scheduled
  this.readingMore = false;

  this.decoder = null;
  this.encoding = null;
  if (options.encoding) {
    if (!StringDecoder)
      StringDecoder = require('string_decoder').StringDecoder;
    this.decoder = new StringDecoder(options.encoding);
    this.encoding = options.encoding;
  }
}

function Readable(options) {
  if (!(this instanceof Readable))
    return new Readable(options);

  this._readableState = new ReadableState(options, this);

  // legacy
  this.readable = true;

  Stream.call(this);
}

// Manually shove something into the read() buffer.
// This returns true if the highWaterMark has not been hit yet,
// similar to how Writable.write() returns true if you should
// write() some more.
Readable.prototype.push = function(chunk, encoding) {
  var state = this._readableState;

  if (typeof chunk === 'string' && !state.objectMode) {
    encoding = encoding || state.defaultEncoding;
    if (encoding !== state.encoding) {
      chunk = new Buffer(chunk, encoding);
      encoding = '';
    }
  }

  return readableAddChunk(this, state, chunk, encoding, false);
};

// Unshift should *always* be something directly out of read()
Readable.prototype.unshift = function(chunk) {
  var state = this._readableState;
  return readableAddChunk(this, state, chunk, '', true);
};

function readableAddChunk(stream, state, chunk, encoding, addToFront) {
  var er = chunkInvalid(state, chunk);
  if (er) {
    stream.emit('error', er);
  } else if (chunk === null || chunk === undefined) {
    state.reading = false;
    if (!state.ended)
      onEofChunk(stream, state);
  } else if (state.objectMode || chunk && chunk.length > 0) {
    if (state.ended && !addToFront) {
      var e = new Error('stream.push() after EOF');
      stream.emit('error', e);
    } else if (state.endEmitted && addToFront) {
      var e = new Error('stream.unshift() after end event');
      stream.emit('error', e);
    } else {
      if (state.decoder && !addToFront && !encoding)
        chunk = state.decoder.write(chunk);

      // update the buffer info.
      state.length += state.objectMode ? 1 : chunk.length;
      if (addToFront) {
        state.buffer.unshift(chunk);
      } else {
        state.reading = false;
        state.buffer.push(chunk);
      }

      if (state.needReadable)
        emitReadable(stream);

      maybeReadMore(stream, state);
    }
  } else if (!addToFront) {
    state.reading = false;
  }

  return needMoreData(state);
}



// if it's past the high water mark, we can push in some more.
// Also, if we have no data yet, we can stand some
// more bytes.  This is to work around cases where hwm=0,
// such as the repl.  Also, if the push() triggered a
// readable event, and the user called read(largeNumber) such that
// needReadable was set, then we ought to push more, so that another
// 'readable' event will be triggered.
function needMoreData(state) {
  return !state.ended &&
         (state.needReadable ||
          state.length < state.highWaterMark ||
          state.length === 0);
}

// backwards compatibility.
Readable.prototype.setEncoding = function(enc) {
  if (!StringDecoder)
    StringDecoder = require('string_decoder').StringDecoder;
  this._readableState.decoder = new StringDecoder(enc);
  this._readableState.encoding = enc;
};

// Don't raise the hwm > 128MB
var MAX_HWM = 0x800000;
function roundUpToNextPowerOf2(n) {
  if (n >= MAX_HWM) {
    n = MAX_HWM;
  } else {
    // Get the next highest power of 2
    n--;
    for (var p = 1; p < 32; p <<= 1) n |= n >> p;
    n++;
  }
  return n;
}

function howMuchToRead(n, state) {
  if (state.length === 0 && state.ended)
    return 0;

  if (state.objectMode)
    return n === 0 ? 0 : 1;

  if (isNaN(n) || n === null) {
    // only flow one buffer at a time
    if (state.flowing && state.buffer.length)
      return state.buffer[0].length;
    else
      return state.length;
  }

  if (n <= 0)
    return 0;

  // If we're asking for more than the target buffer level,
  // then raise the water mark.  Bump up to the next highest
  // power of 2, to prevent increasing it excessively in tiny
  // amounts.
  if (n > state.highWaterMark)
    state.highWaterMark = roundUpToNextPowerOf2(n);

  // don't have that much.  return null, unless we've ended.
  if (n > state.length) {
    if (!state.ended) {
      state.needReadable = true;
      return 0;
    } else
      return state.length;
  }

  return n;
}

// you can override either this method, or the async _read(n) below.
Readable.prototype.read = function(n) {
  var state = this._readableState;
  state.calledRead = true;
  var nOrig = n;

  if (typeof n !== 'number' || n > 0)
    state.emittedReadable = false;

  // if we're doing read(0) to trigger a readable event, but we
  // already have a bunch of data in the buffer, then just trigger
  // the 'readable' event and move on.
  if (n === 0 &&
      state.needReadable &&
      (state.length >= state.highWaterMark || state.ended)) {
    emitReadable(this);
    return null;
  }

  n = howMuchToRead(n, state);

  // if we've ended, and we're now clear, then finish it up.
  if (n === 0 && state.ended) {
    if (state.length === 0)
      endReadable(this);
    return null;
  }

  // All the actual chunk generation logic needs to be
  // *below* the call to _read.  The reason is that in certain
  // synthetic stream cases, such as passthrough streams, _read
  // may be a completely synchronous operation which may change
  // the state of the read buffer, providing enough data when
  // before there was *not* enough.
  //
  // So, the steps are:
  // 1. Figure out what the state of things will be after we do
  // a read from the buffer.
  //
  // 2. If that resulting state will trigger a _read, then call _read.
  // Note that this may be asynchronous, or synchronous.  Yes, it is
  // deeply ugly to write APIs this way, but that still doesn't mean
  // that the Readable class should behave improperly, as streams are
  // designed to be sync/async agnostic.
  // Take note if the _read call is sync or async (ie, if the read call
  // has returned yet), so that we know whether or not it's safe to emit
  // 'readable' etc.
  //
  // 3. Actually pull the requested chunks out of the buffer and return.

  // if we need a readable event, then we need to do some reading.
  var doRead = state.needReadable;

  // if we currently have less than the highWaterMark, then also read some
  if (state.length - n <= state.highWaterMark)
    doRead = true;

  // however, if we've ended, then there's no point, and if we're already
  // reading, then it's unnecessary.
  if (state.ended || state.reading)
    doRead = false;

  if (doRead) {
    state.reading = true;
    state.sync = true;
    // if the length is currently zero, then we *need* a readable event.
    if (state.length === 0)
      state.needReadable = true;
    // call internal read method
    this._read(state.highWaterMark);
    state.sync = false;
  }

  // If _read called its callback synchronously, then `reading`
  // will be false, and we need to re-evaluate how much data we
  // can return to the user.
  if (doRead && !state.reading)
    n = howMuchToRead(nOrig, state);

  var ret;
  if (n > 0)
    ret = fromList(n, state);
  else
    ret = null;

  if (ret === null) {
    state.needReadable = true;
    n = 0;
  }

  state.length -= n;

  // If we have nothing in the buffer, then we want to know
  // as soon as we *do* get something into the buffer.
  if (state.length === 0 && !state.ended)
    state.needReadable = true;

  // If we happened to read() exactly the remaining amount in the
  // buffer, and the EOF has been seen at this point, then make sure
  // that we emit 'end' on the very next tick.
  if (state.ended && !state.endEmitted && state.length === 0)
    endReadable(this);

  return ret;
};

function chunkInvalid(state, chunk) {
  var er = null;
  if (!Buffer.isBuffer(chunk) &&
      'string' !== typeof chunk &&
      chunk !== null &&
      chunk !== undefined &&
      !state.objectMode &&
      !er) {
    er = new TypeError('Invalid non-string/buffer chunk');
  }
  return er;
}


function onEofChunk(stream, state) {
  if (state.decoder && !state.ended) {
    var chunk = state.decoder.end();
    if (chunk && chunk.length) {
      state.buffer.push(chunk);
      state.length += state.objectMode ? 1 : chunk.length;
    }
  }
  state.ended = true;

  // if we've ended and we have some data left, then emit
  // 'readable' now to make sure it gets picked up.
  if (state.length > 0)
    emitReadable(stream);
  else
    endReadable(stream);
}

// Don't emit readable right away in sync mode, because this can trigger
// another read() call => stack overflow.  This way, it might trigger
// a nextTick recursion warning, but that's not so bad.
function emitReadable(stream) {
  var state = stream._readableState;
  state.needReadable = false;
  if (state.emittedReadable)
    return;

  state.emittedReadable = true;
  if (state.sync)
    setImmediate(function() {
      emitReadable_(stream);
    });
  else
    emitReadable_(stream);
}

function emitReadable_(stream) {
  stream.emit('readable');
}


// at this point, the user has presumably seen the 'readable' event,
// and called read() to consume some data.  that may have triggered
// in turn another _read(n) call, in which case reading = true if
// it's in progress.
// However, if we're not ended, or reading, and the length < hwm,
// then go ahead and try to read some more preemptively.
function maybeReadMore(stream, state) {
  if (!state.readingMore) {
    state.readingMore = true;
    setImmediate(function() {
      maybeReadMore_(stream, state);
    });
  }
}

function maybeReadMore_(stream, state) {
  var len = state.length;
  while (!state.reading && !state.flowing && !state.ended &&
         state.length < state.highWaterMark) {
    stream.read(0);
    if (len === state.length)
      // didn't get any data, stop spinning.
      break;
    else
      len = state.length;
  }
  state.readingMore = false;
}

// abstract method.  to be overridden in specific implementation classes.
// call cb(er, data) where data is <= n in length.
// for virtual (non-string, non-buffer) streams, "length" is somewhat
// arbitrary, and perhaps not very meaningful.
Readable.prototype._read = function(n) {
  this.emit('error', new Error('not implemented'));
};

Readable.prototype.pipe = function(dest, pipeOpts) {
  var src = this;
  var state = this._readableState;

  switch (state.pipesCount) {
    case 0:
      state.pipes = dest;
      break;
    case 1:
      state.pipes = [state.pipes, dest];
      break;
    default:
      state.pipes.push(dest);
      break;
  }
  state.pipesCount += 1;

  var doEnd = (!pipeOpts || pipeOpts.end !== false) &&
              dest !== process.stdout &&
              dest !== process.stderr;

  var endFn = doEnd ? onend : cleanup;
  if (state.endEmitted)
    setImmediate(endFn);
  else
    src.once('end', endFn);

  dest.on('unpipe', onunpipe);
  function onunpipe(readable) {
    if (readable !== src) return;
    cleanup();
  }

  function onend() {
    dest.end();
  }

  // when the dest drains, it reduces the awaitDrain counter
  // on the source.  This would be more elegant with a .once()
  // handler in flow(), but adding and removing repeatedly is
  // too slow.
  var ondrain = pipeOnDrain(src);
  dest.on('drain', ondrain);

  function cleanup() {
    // cleanup event handlers once the pipe is broken
    dest.removeListener('close', onclose);
    dest.removeListener('finish', onfinish);
    dest.removeListener('drain', ondrain);
    dest.removeListener('error', onerror);
    dest.removeListener('unpipe', onunpipe);
    src.removeListener('end', onend);
    src.removeListener('end', cleanup);

    // if the reader is waiting for a drain event from this
    // specific writer, then it would cause it to never start
    // flowing again.
    // So, if this is awaiting a drain, then we just call it now.
    // If we don't know, then assume that we are waiting for one.
    if (!dest._writableState || dest._writableState.needDrain)
      ondrain();
  }

  // if the dest has an error, then stop piping into it.
  // however, don't suppress the throwing behavior for this.
  // check for listeners before emit removes one-time listeners.
  var errListeners = EE.listenerCount(dest, 'error');
  function onerror(er) {
    unpipe();
    if (errListeners === 0 && EE.listenerCount(dest, 'error') === 0)
      dest.emit('error', er);
  }
  dest.once('error', onerror);

  // Both close and finish should trigger unpipe, but only once.
  function onclose() {
    dest.removeListener('finish', onfinish);
    unpipe();
  }
  dest.once('close', onclose);
  function onfinish() {
    dest.removeListener('close', onclose);
    unpipe();
  }
  dest.once('finish', onfinish);

  function unpipe() {
    src.unpipe(dest);
  }

  // tell the dest that it's being piped to
  dest.emit('pipe', src);

  // start the flow if it hasn't been started already.
  if (!state.flowing) {
    // the handler that waits for readable events after all
    // the data gets sucked out in flow.
    // This would be easier to follow with a .once() handler
    // in flow(), but that is too slow.
    this.on('readable', pipeOnReadable);

    state.flowing = true;
    setImmediate(function() {
      flow(src);
    });
  }

  return dest;
};

function pipeOnDrain(src) {
  return function() {
    var dest = this;
    var state = src._readableState;
    state.awaitDrain--;
    if (state.awaitDrain === 0)
      flow(src);
  };
}

function flow(src) {
  var state = src._readableState;
  var chunk;
  state.awaitDrain = 0;

  function write(dest, i, list) {
    var written = dest.write(chunk);
    if (false === written) {
      state.awaitDrain++;
    }
  }

  while (state.pipesCount && null !== (chunk = src.read())) {

    if (state.pipesCount === 1)
      write(state.pipes, 0, null);
    else
      forEach(state.pipes, write);

    src.emit('data', chunk);

    // if anyone needs a drain, then we have to wait for that.
    if (state.awaitDrain > 0)
      return;
  }

  // if every destination was unpiped, either before entering this
  // function, or in the while loop, then stop flowing.
  //
  // NB: This is a pretty rare edge case.
  if (state.pipesCount === 0) {
    state.flowing = false;

    // if there were data event listeners added, then switch to old mode.
    if (EE.listenerCount(src, 'data') > 0)
      emitDataEvents(src);
    return;
  }

  // at this point, no one needed a drain, so we just ran out of data
  // on the next readable event, start it over again.
  state.ranOut = true;
}

function pipeOnReadable() {
  if (this._readableState.ranOut) {
    this._readableState.ranOut = false;
    flow(this);
  }
}


Readable.prototype.unpipe = function(dest) {
  var state = this._readableState;

  // if we're not piping anywhere, then do nothing.
  if (state.pipesCount === 0)
    return this;

  // just one destination.  most common case.
  if (state.pipesCount === 1) {
    // passed in one, but it's not the right one.
    if (dest && dest !== state.pipes)
      return this;

    if (!dest)
      dest = state.pipes;

    // got a match.
    state.pipes = null;
    state.pipesCount = 0;
    this.removeListener('readable', pipeOnReadable);
    state.flowing = false;
    if (dest)
      dest.emit('unpipe', this);
    return this;
  }

  // slow case. multiple pipe destinations.

  if (!dest) {
    // remove all.
    var dests = state.pipes;
    var len = state.pipesCount;
    state.pipes = null;
    state.pipesCount = 0;
    this.removeListener('readable', pipeOnReadable);
    state.flowing = false;

    for (var i = 0; i < len; i++)
      dests[i].emit('unpipe', this);
    return this;
  }

  // try to find the right one.
  var i = indexOf(state.pipes, dest);
  if (i === -1)
    return this;

  state.pipes.splice(i, 1);
  state.pipesCount -= 1;
  if (state.pipesCount === 1)
    state.pipes = state.pipes[0];

  dest.emit('unpipe', this);

  return this;
};

// set up data events if they are asked for
// Ensure readable listeners eventually get something
Readable.prototype.on = function(ev, fn) {
  var res = Stream.prototype.on.call(this, ev, fn);

  if (ev === 'data' && !this._readableState.flowing)
    emitDataEvents(this);

  if (ev === 'readable' && this.readable) {
    var state = this._readableState;
    if (!state.readableListening) {
      state.readableListening = true;
      state.emittedReadable = false;
      state.needReadable = true;
      if (!state.reading) {
        this.read(0);
      } else if (state.length) {
        emitReadable(this, state);
      }
    }
  }

  return res;
};
Readable.prototype.addListener = Readable.prototype.on;

// pause() and resume() are remnants of the legacy readable stream API
// If the user uses them, then switch into old mode.
Readable.prototype.resume = function() {
  emitDataEvents(this);
  this.read(0);
  this.emit('resume');
};

Readable.prototype.pause = function() {
  emitDataEvents(this, true);
  this.emit('pause');
};

function emitDataEvents(stream, startPaused) {
  var state = stream._readableState;

  if (state.flowing) {
    // https://github.com/isaacs/readable-stream/issues/16
    throw new Error('Cannot switch to old mode now.');
  }

  var paused = startPaused || false;
  var readable = false;

  // convert to an old-style stream.
  stream.readable = true;
  stream.pipe = Stream.prototype.pipe;
  stream.on = stream.addListener = Stream.prototype.on;

  stream.on('readable', function() {
    readable = true;

    var c;
    while (!paused && (null !== (c = stream.read())))
      stream.emit('data', c);

    if (c === null) {
      readable = false;
      stream._readableState.needReadable = true;
    }
  });

  stream.pause = function() {
    paused = true;
    this.emit('pause');
  };

  stream.resume = function() {
    paused = false;
    if (readable)
      setImmediate(function() {
        stream.emit('readable');
      });
    else
      this.read(0);
    this.emit('resume');
  };

  // now make it start, just in case it hadn't already.
  stream.emit('readable');
}

// wrap an old-style stream as the async data source.
// This is *not* part of the readable stream interface.
// It is an ugly unfortunate mess of history.
Readable.prototype.wrap = function(stream) {
  var state = this._readableState;
  var paused = false;

  var self = this;
  stream.on('end', function() {
    if (state.decoder && !state.ended) {
      var chunk = state.decoder.end();
      if (chunk && chunk.length)
        self.push(chunk);
    }

    self.push(null);
  });

  stream.on('data', function(chunk) {
    if (state.decoder)
      chunk = state.decoder.write(chunk);
    if (!chunk || !state.objectMode && !chunk.length)
      return;

    var ret = self.push(chunk);
    if (!ret) {
      paused = true;
      stream.pause();
    }
  });

  // proxy all the other methods.
  // important when wrapping filters and duplexes.
  for (var i in stream) {
    if (typeof stream[i] === 'function' &&
        typeof this[i] === 'undefined') {
      this[i] = function(method) { return function() {
        return stream[method].apply(stream, arguments);
      }}(i);
    }
  }

  // proxy certain important events.
  var events = ['error', 'close', 'destroy', 'pause', 'resume'];
  forEach(events, function(ev) {
    stream.on(ev, function (x) {
      return self.emit.apply(self, ev, x);
    });
  });

  // when we try to consume some more bytes, simply unpause the
  // underlying stream.
  self._read = function(n) {
    if (paused) {
      paused = false;
      stream.resume();
    }
  };

  return self;
};



// exposed for testing purposes only.
Readable._fromList = fromList;

// Pluck off n bytes from an array of buffers.
// Length is the combined lengths of all the buffers in the list.
function fromList(n, state) {
  var list = state.buffer;
  var length = state.length;
  var stringMode = !!state.decoder;
  var objectMode = !!state.objectMode;
  var ret;

  // nothing in the list, definitely empty.
  if (list.length === 0)
    return null;

  if (length === 0)
    ret = null;
  else if (objectMode)
    ret = list.shift();
  else if (!n || n >= length) {
    // read it all, truncate the array.
    if (stringMode)
      ret = list.join('');
    else
      ret = Buffer.concat(list, length);
    list.length = 0;
  } else {
    // read just some of it.
    if (n < list[0].length) {
      // just take a part of the first list item.
      // slice is the same for buffers and strings.
      var buf = list[0];
      ret = buf.slice(0, n);
      list[0] = buf.slice(n);
    } else if (n === list[0].length) {
      // first list is a perfect match
      ret = list.shift();
    } else {
      // complex case.
      // we have enough to cover it, but it spans past the first buffer.
      if (stringMode)
        ret = '';
      else
        ret = new Buffer(n);

      var c = 0;
      for (var i = 0, l = list.length; i < l && c < n; i++) {
        var buf = list[0];
        var cpy = Math.min(n - c, buf.length);

        if (stringMode)
          ret += buf.slice(0, cpy);
        else
          buf.copy(ret, c, 0, cpy);

        if (cpy < buf.length)
          list[0] = buf.slice(cpy);
        else
          list.shift();

        c += cpy;
      }
    }
  }

  return ret;
}

function endReadable(stream) {
  var state = stream._readableState;

  // If we get here before consuming all the bytes, then that is a
  // bug in node.  Should never happen.
  if (state.length > 0)
    throw new Error('endReadable called on non-empty stream');

  if (!state.endEmitted && state.calledRead) {
    state.ended = true;
    setImmediate(function() {
      // Check that we didn't get one last unshift.
      if (!state.endEmitted && state.length === 0) {
        state.endEmitted = true;
        stream.readable = false;
        stream.emit('end');
      }
    });
  }
}

function forEach (xs, f) {
  for (var i = 0, l = xs.length; i < l; i++) {
    f(xs[i], i);
  }
}

function indexOf (xs, x) {
  for (var i = 0, l = xs.length; i < l; i++) {
    if (xs[i] === x) return i;
  }
  return -1;
}

}).call(this,require("g5I+bs"))
},{"./index.js":19,"buffer":3,"events":5,"g5I+bs":13,"inherits":10,"process/browser.js":20,"string_decoder":25}],23:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// a transform stream is a readable/writable stream where you do
// something with the data.  Sometimes it's called a "filter",
// but that's not a great name for it, since that implies a thing where
// some bits pass through, and others are simply ignored.  (That would
// be a valid example of a transform, of course.)
//
// While the output is causally related to the input, it's not a
// necessarily symmetric or synchronous transformation.  For example,
// a zlib stream might take multiple plain-text writes(), and then
// emit a single compressed chunk some time in the future.
//
// Here's how this works:
//
// The Transform stream has all the aspects of the readable and writable
// stream classes.  When you write(chunk), that calls _write(chunk,cb)
// internally, and returns false if there's a lot of pending writes
// buffered up.  When you call read(), that calls _read(n) until
// there's enough pending readable data buffered up.
//
// In a transform stream, the written data is placed in a buffer.  When
// _read(n) is called, it transforms the queued up data, calling the
// buffered _write cb's as it consumes chunks.  If consuming a single
// written chunk would result in multiple output chunks, then the first
// outputted bit calls the readcb, and subsequent chunks just go into
// the read buffer, and will cause it to emit 'readable' if necessary.
//
// This way, back-pressure is actually determined by the reading side,
// since _read has to be called to start processing a new chunk.  However,
// a pathological inflate type of transform can cause excessive buffering
// here.  For example, imagine a stream where every byte of input is
// interpreted as an integer from 0-255, and then results in that many
// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
// 1kb of data being output.  In this case, you could write a very small
// amount of input, and end up with a very large amount of output.  In
// such a pathological inflating mechanism, there'd be no way to tell
// the system to stop doing the transform.  A single 4MB write could
// cause the system to run out of memory.
//
// However, even in such a pathological case, only a single written chunk
// would be consumed, and then the rest would wait (un-transformed) until
// the results of the previous transformed chunk were consumed.

module.exports = Transform;

var Duplex = require('./duplex.js');
var inherits = require('inherits');
inherits(Transform, Duplex);


function TransformState(options, stream) {
  this.afterTransform = function(er, data) {
    return afterTransform(stream, er, data);
  };

  this.needTransform = false;
  this.transforming = false;
  this.writecb = null;
  this.writechunk = null;
}

function afterTransform(stream, er, data) {
  var ts = stream._transformState;
  ts.transforming = false;

  var cb = ts.writecb;

  if (!cb)
    return stream.emit('error', new Error('no writecb in Transform class'));

  ts.writechunk = null;
  ts.writecb = null;

  if (data !== null && data !== undefined)
    stream.push(data);

  if (cb)
    cb(er);

  var rs = stream._readableState;
  rs.reading = false;
  if (rs.needReadable || rs.length < rs.highWaterMark) {
    stream._read(rs.highWaterMark);
  }
}


function Transform(options) {
  if (!(this instanceof Transform))
    return new Transform(options);

  Duplex.call(this, options);

  var ts = this._transformState = new TransformState(options, this);

  // when the writable side finishes, then flush out anything remaining.
  var stream = this;

  // start out asking for a readable event once data is transformed.
  this._readableState.needReadable = true;

  // we have implemented the _read method, and done the other things
  // that Readable wants before the first _read call, so unset the
  // sync guard flag.
  this._readableState.sync = false;

  this.once('finish', function() {
    if ('function' === typeof this._flush)
      this._flush(function(er) {
        done(stream, er);
      });
    else
      done(stream);
  });
}

Transform.prototype.push = function(chunk, encoding) {
  this._transformState.needTransform = false;
  return Duplex.prototype.push.call(this, chunk, encoding);
};

// This is the part where you do stuff!
// override this function in implementation classes.
// 'chunk' is an input chunk.
//
// Call `push(newChunk)` to pass along transformed output
// to the readable side.  You may call 'push' zero or more times.
//
// Call `cb(err)` when you are done with this chunk.  If you pass
// an error, then that'll put the hurt on the whole operation.  If you
// never call cb(), then you'll never get another chunk.
Transform.prototype._transform = function(chunk, encoding, cb) {
  throw new Error('not implemented');
};

Transform.prototype._write = function(chunk, encoding, cb) {
  var ts = this._transformState;
  ts.writecb = cb;
  ts.writechunk = chunk;
  ts.writeencoding = encoding;
  if (!ts.transforming) {
    var rs = this._readableState;
    if (ts.needTransform ||
        rs.needReadable ||
        rs.length < rs.highWaterMark)
      this._read(rs.highWaterMark);
  }
};

// Doesn't matter what the args are here.
// _transform does all the work.
// That we got here means that the readable side wants more data.
Transform.prototype._read = function(n) {
  var ts = this._transformState;

  if (ts.writechunk && ts.writecb && !ts.transforming) {
    ts.transforming = true;
    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
  } else {
    // mark that we need a transform, so that any data that comes in
    // will get processed, now that we've asked for it.
    ts.needTransform = true;
  }
};


function done(stream, er) {
  if (er)
    return stream.emit('error', er);

  // if there's nothing in the write buffer, then that means
  // that nothing more will ever be provided
  var ws = stream._writableState;
  var rs = stream._readableState;
  var ts = stream._transformState;

  if (ws.length)
    throw new Error('calling transform done when ws.length != 0');

  if (ts.transforming)
    throw new Error('calling transform done when still transforming');

  return stream.push(null);
}

},{"./duplex.js":18,"inherits":10}],24:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// A bit simpler than readable streams.
// Implement an async ._write(chunk, cb), and it'll handle all
// the drain event emission and buffering.

module.exports = Writable;
Writable.WritableState = WritableState;

var isUint8Array = typeof Uint8Array !== 'undefined'
  ? function (x) { return x instanceof Uint8Array }
  : function (x) {
    return x && x.constructor && x.constructor.name === 'Uint8Array'
  }
;
var isArrayBuffer = typeof ArrayBuffer !== 'undefined'
  ? function (x) { return x instanceof ArrayBuffer }
  : function (x) {
    return x && x.constructor && x.constructor.name === 'ArrayBuffer'
  }
;

var inherits = require('inherits');
var Stream = require('./index.js');
var setImmediate = require('process/browser.js').nextTick;
var Buffer = require('buffer').Buffer;

inherits(Writable, Stream);

function WriteReq(chunk, encoding, cb) {
  this.chunk = chunk;
  this.encoding = encoding;
  this.callback = cb;
}

function WritableState(options, stream) {
  options = options || {};

  // the point at which write() starts returning false
  // Note: 0 is a valid value, means that we always return false if
  // the entire buffer is not flushed immediately on write()
  var hwm = options.highWaterMark;
  this.highWaterMark = (hwm || hwm === 0) ? hwm : 16 * 1024;

  // object stream flag to indicate whether or not this stream
  // contains buffers or objects.
  this.objectMode = !!options.objectMode;

  // cast to ints.
  this.highWaterMark = ~~this.highWaterMark;

  this.needDrain = false;
  // at the start of calling end()
  this.ending = false;
  // when end() has been called, and returned
  this.ended = false;
  // when 'finish' is emitted
  this.finished = false;

  // should we decode strings into buffers before passing to _write?
  // this is here so that some node-core streams can optimize string
  // handling at a lower level.
  var noDecode = options.decodeStrings === false;
  this.decodeStrings = !noDecode;

  // Crypto is kind of old and crusty.  Historically, its default string
  // encoding is 'binary' so we have to make this configurable.
  // Everything else in the universe uses 'utf8', though.
  this.defaultEncoding = options.defaultEncoding || 'utf8';

  // not an actual buffer we keep track of, but a measurement
  // of how much we're waiting to get pushed to some underlying
  // socket or file.
  this.length = 0;

  // a flag to see when we're in the middle of a write.
  this.writing = false;

  // a flag to be able to tell if the onwrite cb is called immediately,
  // or on a later tick.  We set this to true at first, becuase any
  // actions that shouldn't happen until "later" should generally also
  // not happen before the first write call.
  this.sync = true;

  // a flag to know if we're processing previously buffered items, which
  // may call the _write() callback in the same tick, so that we don't
  // end up in an overlapped onwrite situation.
  this.bufferProcessing = false;

  // the callback that's passed to _write(chunk,cb)
  this.onwrite = function(er) {
    onwrite(stream, er);
  };

  // the callback that the user supplies to write(chunk,encoding,cb)
  this.writecb = null;

  // the amount that is being written when _write is called.
  this.writelen = 0;

  this.buffer = [];
}

function Writable(options) {
  // Writable ctor is applied to Duplexes, though they're not
  // instanceof Writable, they're instanceof Readable.
  if (!(this instanceof Writable) && !(this instanceof Stream.Duplex))
    return new Writable(options);

  this._writableState = new WritableState(options, this);

  // legacy.
  this.writable = true;

  Stream.call(this);
}

// Otherwise people can pipe Writable streams, which is just wrong.
Writable.prototype.pipe = function() {
  this.emit('error', new Error('Cannot pipe. Not readable.'));
};


function writeAfterEnd(stream, state, cb) {
  var er = new Error('write after end');
  // TODO: defer error events consistently everywhere, not just the cb
  stream.emit('error', er);
  setImmediate(function() {
    cb(er);
  });
}

// If we get something that is not a buffer, string, null, or undefined,
// and we're not in objectMode, then that's an error.
// Otherwise stream chunks are all considered to be of length=1, and the
// watermarks determine how many objects to keep in the buffer, rather than
// how many bytes or characters.
function validChunk(stream, state, chunk, cb) {
  var valid = true;
  if (!Buffer.isBuffer(chunk) &&
      'string' !== typeof chunk &&
      chunk !== null &&
      chunk !== undefined &&
      !state.objectMode) {
    var er = new TypeError('Invalid non-string/buffer chunk');
    stream.emit('error', er);
    setImmediate(function() {
      cb(er);
    });
    valid = false;
  }
  return valid;
}

Writable.prototype.write = function(chunk, encoding, cb) {
  var state = this._writableState;
  var ret = false;

  if (typeof encoding === 'function') {
    cb = encoding;
    encoding = null;
  }

  if (!Buffer.isBuffer(chunk) && isUint8Array(chunk))
    chunk = new Buffer(chunk);
  if (isArrayBuffer(chunk) && typeof Uint8Array !== 'undefined')
    chunk = new Buffer(new Uint8Array(chunk));
  
  if (Buffer.isBuffer(chunk))
    encoding = 'buffer';
  else if (!encoding)
    encoding = state.defaultEncoding;

  if (typeof cb !== 'function')
    cb = function() {};

  if (state.ended)
    writeAfterEnd(this, state, cb);
  else if (validChunk(this, state, chunk, cb))
    ret = writeOrBuffer(this, state, chunk, encoding, cb);

  return ret;
};

function decodeChunk(state, chunk, encoding) {
  if (!state.objectMode &&
      state.decodeStrings !== false &&
      typeof chunk === 'string') {
    chunk = new Buffer(chunk, encoding);
  }
  return chunk;
}

// if we're already writing something, then just put this
// in the queue, and wait our turn.  Otherwise, call _write
// If we return false, then we need a drain event, so set that flag.
function writeOrBuffer(stream, state, chunk, encoding, cb) {
  chunk = decodeChunk(state, chunk, encoding);
  var len = state.objectMode ? 1 : chunk.length;

  state.length += len;

  var ret = state.length < state.highWaterMark;
  state.needDrain = !ret;

  if (state.writing)
    state.buffer.push(new WriteReq(chunk, encoding, cb));
  else
    doWrite(stream, state, len, chunk, encoding, cb);

  return ret;
}

function doWrite(stream, state, len, chunk, encoding, cb) {
  state.writelen = len;
  state.writecb = cb;
  state.writing = true;
  state.sync = true;
  stream._write(chunk, encoding, state.onwrite);
  state.sync = false;
}

function onwriteError(stream, state, sync, er, cb) {
  if (sync)
    setImmediate(function() {
      cb(er);
    });
  else
    cb(er);

  stream.emit('error', er);
}

function onwriteStateUpdate(state) {
  state.writing = false;
  state.writecb = null;
  state.length -= state.writelen;
  state.writelen = 0;
}

function onwrite(stream, er) {
  var state = stream._writableState;
  var sync = state.sync;
  var cb = state.writecb;

  onwriteStateUpdate(state);

  if (er)
    onwriteError(stream, state, sync, er, cb);
  else {
    // Check if we're actually ready to finish, but don't emit yet
    var finished = needFinish(stream, state);

    if (!finished && !state.bufferProcessing && state.buffer.length)
      clearBuffer(stream, state);

    if (sync) {
      setImmediate(function() {
        afterWrite(stream, state, finished, cb);
      });
    } else {
      afterWrite(stream, state, finished, cb);
    }
  }
}

function afterWrite(stream, state, finished, cb) {
  if (!finished)
    onwriteDrain(stream, state);
  cb();
  if (finished)
    finishMaybe(stream, state);
}

// Must force callback to be called on nextTick, so that we don't
// emit 'drain' before the write() consumer gets the 'false' return
// value, and has a chance to attach a 'drain' listener.
function onwriteDrain(stream, state) {
  if (state.length === 0 && state.needDrain) {
    state.needDrain = false;
    stream.emit('drain');
  }
}


// if there's something in the buffer waiting, then process it
function clearBuffer(stream, state) {
  state.bufferProcessing = true;

  for (var c = 0; c < state.buffer.length; c++) {
    var entry = state.buffer[c];
    var chunk = entry.chunk;
    var encoding = entry.encoding;
    var cb = entry.callback;
    var len = state.objectMode ? 1 : chunk.length;

    doWrite(stream, state, len, chunk, encoding, cb);

    // if we didn't call the onwrite immediately, then
    // it means that we need to wait until it does.
    // also, that means that the chunk and cb are currently
    // being processed, so move the buffer counter past them.
    if (state.writing) {
      c++;
      break;
    }
  }

  state.bufferProcessing = false;
  if (c < state.buffer.length)
    state.buffer = state.buffer.slice(c);
  else
    state.buffer.length = 0;
}

Writable.prototype._write = function(chunk, encoding, cb) {
  cb(new Error('not implemented'));
};

Writable.prototype.end = function(chunk, encoding, cb) {
  var state = this._writableState;

  if (typeof chunk === 'function') {
    cb = chunk;
    chunk = null;
    encoding = null;
  } else if (typeof encoding === 'function') {
    cb = encoding;
    encoding = null;
  }

  if (typeof chunk !== 'undefined' && chunk !== null)
    this.write(chunk, encoding);

  // ignore unnecessary end() calls.
  if (!state.ending && !state.finished)
    endWritable(this, state, cb);
};


function needFinish(stream, state) {
  return (state.ending &&
          state.length === 0 &&
          !state.finished &&
          !state.writing);
}

function finishMaybe(stream, state) {
  var need = needFinish(stream, state);
  if (need) {
    state.finished = true;
    stream.emit('finish');
  }
  return need;
}

function endWritable(stream, state, cb) {
  state.ending = true;
  finishMaybe(stream, state);
  if (cb) {
    if (state.finished)
      setImmediate(cb);
    else
      stream.once('finish', cb);
  }
  state.ended = true;
}

},{"./index.js":19,"buffer":3,"inherits":10,"process/browser.js":20}],25:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var Buffer = require('buffer').Buffer;

function assertEncoding(encoding) {
  if (encoding && !Buffer.isEncoding(encoding)) {
    throw new Error('Unknown encoding: ' + encoding);
  }
}

var StringDecoder = exports.StringDecoder = function(encoding) {
  this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, '');
  assertEncoding(encoding);
  switch (this.encoding) {
    case 'utf8':
      // CESU-8 represents each of Surrogate Pair by 3-bytes
      this.surrogateSize = 3;
      break;
    case 'ucs2':
    case 'utf16le':
      // UTF-16 represents each of Surrogate Pair by 2-bytes
      this.surrogateSize = 2;
      this.detectIncompleteChar = utf16DetectIncompleteChar;
      break;
    case 'base64':
      // Base-64 stores 3 bytes in 4 chars, and pads the remainder.
      this.surrogateSize = 3;
      this.detectIncompleteChar = base64DetectIncompleteChar;
      break;
    default:
      this.write = passThroughWrite;
      return;
  }

  this.charBuffer = new Buffer(6);
  this.charReceived = 0;
  this.charLength = 0;
};


StringDecoder.prototype.write = function(buffer) {
  var charStr = '';
  var offset = 0;

  // if our last write ended with an incomplete multibyte character
  while (this.charLength) {
    // determine how many remaining bytes this buffer has to offer for this char
    var i = (buffer.length >= this.charLength - this.charReceived) ?
                this.charLength - this.charReceived :
                buffer.length;

    // add the new bytes to the char buffer
    buffer.copy(this.charBuffer, this.charReceived, offset, i);
    this.charReceived += (i - offset);
    offset = i;

    if (this.charReceived < this.charLength) {
      // still not enough chars in this buffer? wait for more ...
      return '';
    }

    // get the character that was split
    charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding);

    // lead surrogate (D800-DBFF) is also the incomplete character
    var charCode = charStr.charCodeAt(charStr.length - 1);
    if (charCode >= 0xD800 && charCode <= 0xDBFF) {
      this.charLength += this.surrogateSize;
      charStr = '';
      continue;
    }
    this.charReceived = this.charLength = 0;

    // if there are no more bytes in this buffer, just emit our char
    if (i == buffer.length) return charStr;

    // otherwise cut off the characters end from the beginning of this buffer
    buffer = buffer.slice(i, buffer.length);
    break;
  }

  var lenIncomplete = this.detectIncompleteChar(buffer);

  var end = buffer.length;
  if (this.charLength) {
    // buffer the incomplete character bytes we got
    buffer.copy(this.charBuffer, 0, buffer.length - lenIncomplete, end);
    this.charReceived = lenIncomplete;
    end -= lenIncomplete;
  }

  charStr += buffer.toString(this.encoding, 0, end);

  var end = charStr.length - 1;
  var charCode = charStr.charCodeAt(end);
  // lead surrogate (D800-DBFF) is also the incomplete character
  if (charCode >= 0xD800 && charCode <= 0xDBFF) {
    var size = this.surrogateSize;
    this.charLength += size;
    this.charReceived += size;
    this.charBuffer.copy(this.charBuffer, size, 0, size);
    this.charBuffer.write(charStr.charAt(charStr.length - 1), this.encoding);
    return charStr.substring(0, end);
  }

  // or just emit the charStr
  return charStr;
};

StringDecoder.prototype.detectIncompleteChar = function(buffer) {
  // determine how many bytes we have to check at the end of this buffer
  var i = (buffer.length >= 3) ? 3 : buffer.length;

  // Figure out if one of the last i bytes of our buffer announces an
  // incomplete char.
  for (; i > 0; i--) {
    var c = buffer[buffer.length - i];

    // See http://en.wikipedia.org/wiki/UTF-8#Description

    // 110XXXXX
    if (i == 1 && c >> 5 == 0x06) {
      this.charLength = 2;
      break;
    }

    // 1110XXXX
    if (i <= 2 && c >> 4 == 0x0E) {
      this.charLength = 3;
      break;
    }

    // 11110XXX
    if (i <= 3 && c >> 3 == 0x1E) {
      this.charLength = 4;
      break;
    }
  }

  return i;
};

StringDecoder.prototype.end = function(buffer) {
  var res = '';
  if (buffer && buffer.length)
    res = this.write(buffer);

  if (this.charReceived) {
    var cr = this.charReceived;
    var buf = this.charBuffer;
    var enc = this.encoding;
    res += buf.slice(0, cr).toString(enc);
  }

  return res;
};

function passThroughWrite(buffer) {
  return buffer.toString(this.encoding);
}

function utf16DetectIncompleteChar(buffer) {
  var incomplete = this.charReceived = buffer.length % 2;
  this.charLength = incomplete ? 2 : 0;
  return incomplete;
}

function base64DetectIncompleteChar(buffer) {
  var incomplete = this.charReceived = buffer.length % 3;
  this.charLength = incomplete ? 3 : 0;
  return incomplete;
}

},{"buffer":3}],26:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var punycode = require('punycode');

exports.parse = urlParse;
exports.resolve = urlResolve;
exports.resolveObject = urlResolveObject;
exports.format = urlFormat;

exports.Url = Url;

function Url() {
  this.protocol = null;
  this.slashes = null;
  this.auth = null;
  this.host = null;
  this.port = null;
  this.hostname = null;
  this.hash = null;
  this.search = null;
  this.query = null;
  this.pathname = null;
  this.path = null;
  this.href = null;
}

// Reference: RFC 3986, RFC 1808, RFC 2396

// define these here so at least they only have to be
// compiled once on the first module load.
var protocolPattern = /^([a-z0-9.+-]+:)/i,
    portPattern = /:[0-9]*$/,

    // RFC 2396: characters reserved for delimiting URLs.
    // We actually just auto-escape these.
    delims = ['<', '>', '"', '`', ' ', '\r', '\n', '\t'],

    // RFC 2396: characters not allowed for various reasons.
    unwise = ['{', '}', '|', '\\', '^', '`'].concat(delims),

    // Allowed by RFCs, but cause of XSS attacks.  Always escape these.
    autoEscape = ['\''].concat(unwise),
    // Characters that are never ever allowed in a hostname.
    // Note that any invalid chars are also handled, but these
    // are the ones that are *expected* to be seen, so we fast-path
    // them.
    nonHostChars = ['%', '/', '?', ';', '#'].concat(autoEscape),
    hostEndingChars = ['/', '?', '#'],
    hostnameMaxLen = 255,
    hostnamePartPattern = /^[a-z0-9A-Z_-]{0,63}$/,
    hostnamePartStart = /^([a-z0-9A-Z_-]{0,63})(.*)$/,
    // protocols that can allow "unsafe" and "unwise" chars.
    unsafeProtocol = {
      'javascript': true,
      'javascript:': true
    },
    // protocols that never have a hostname.
    hostlessProtocol = {
      'javascript': true,
      'javascript:': true
    },
    // protocols that always contain a // bit.
    slashedProtocol = {
      'http': true,
      'https': true,
      'ftp': true,
      'gopher': true,
      'file': true,
      'http:': true,
      'https:': true,
      'ftp:': true,
      'gopher:': true,
      'file:': true
    },
    querystring = require('querystring');

function urlParse(url, parseQueryString, slashesDenoteHost) {
  if (url && isObject(url) && url instanceof Url) return url;

  var u = new Url;
  u.parse(url, parseQueryString, slashesDenoteHost);
  return u;
}

Url.prototype.parse = function(url, parseQueryString, slashesDenoteHost) {
  if (!isString(url)) {
    throw new TypeError("Parameter 'url' must be a string, not " + typeof url);
  }

  var rest = url;

  // trim before proceeding.
  // This is to support parse stuff like "  http://foo.com  \n"
  rest = rest.trim();

  var proto = protocolPattern.exec(rest);
  if (proto) {
    proto = proto[0];
    var lowerProto = proto.toLowerCase();
    this.protocol = lowerProto;
    rest = rest.substr(proto.length);
  }

  // figure out if it's got a host
  // user@server is *always* interpreted as a hostname, and url
  // resolution will treat //foo/bar as host=foo,path=bar because that's
  // how the browser resolves relative URLs.
  if (slashesDenoteHost || proto || rest.match(/^\/\/[^@\/]+@[^@\/]+/)) {
    var slashes = rest.substr(0, 2) === '//';
    if (slashes && !(proto && hostlessProtocol[proto])) {
      rest = rest.substr(2);
      this.slashes = true;
    }
  }

  if (!hostlessProtocol[proto] &&
      (slashes || (proto && !slashedProtocol[proto]))) {

    // there's a hostname.
    // the first instance of /, ?, ;, or # ends the host.
    //
    // If there is an @ in the hostname, then non-host chars *are* allowed
    // to the left of the last @ sign, unless some host-ending character
    // comes *before* the @-sign.
    // URLs are obnoxious.
    //
    // ex:
    // http://a@b@c/ => user:a@b host:c
    // http://a@b?@c => user:a host:c path:/?@c

    // v0.12 TODO(isaacs): This is not quite how Chrome does things.
    // Review our test case against browsers more comprehensively.

    // find the first instance of any hostEndingChars
    var hostEnd = -1;
    for (var i = 0; i < hostEndingChars.length; i++) {
      var hec = rest.indexOf(hostEndingChars[i]);
      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd))
        hostEnd = hec;
    }

    // at this point, either we have an explicit point where the
    // auth portion cannot go past, or the last @ char is the decider.
    var auth, atSign;
    if (hostEnd === -1) {
      // atSign can be anywhere.
      atSign = rest.lastIndexOf('@');
    } else {
      // atSign must be in auth portion.
      // http://a@b/c@d => host:b auth:a path:/c@d
      atSign = rest.lastIndexOf('@', hostEnd);
    }

    // Now we have a portion which is definitely the auth.
    // Pull that off.
    if (atSign !== -1) {
      auth = rest.slice(0, atSign);
      rest = rest.slice(atSign + 1);
      this.auth = decodeURIComponent(auth);
    }

    // the host is the remaining to the left of the first non-host char
    hostEnd = -1;
    for (var i = 0; i < nonHostChars.length; i++) {
      var hec = rest.indexOf(nonHostChars[i]);
      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd))
        hostEnd = hec;
    }
    // if we still have not hit it, then the entire thing is a host.
    if (hostEnd === -1)
      hostEnd = rest.length;

    this.host = rest.slice(0, hostEnd);
    rest = rest.slice(hostEnd);

    // pull out port.
    this.parseHost();

    // we've indicated that there is a hostname,
    // so even if it's empty, it has to be present.
    this.hostname = this.hostname || '';

    // if hostname begins with [ and ends with ]
    // assume that it's an IPv6 address.
    var ipv6Hostname = this.hostname[0] === '[' &&
        this.hostname[this.hostname.length - 1] === ']';

    // validate a little.
    if (!ipv6Hostname) {
      var hostparts = this.hostname.split(/\./);
      for (var i = 0, l = hostparts.length; i < l; i++) {
        var part = hostparts[i];
        if (!part) continue;
        if (!part.match(hostnamePartPattern)) {
          var newpart = '';
          for (var j = 0, k = part.length; j < k; j++) {
            if (part.charCodeAt(j) > 127) {
              // we replace non-ASCII char with a temporary placeholder
              // we need this to make sure size of hostname is not
              // broken by replacing non-ASCII by nothing
              newpart += 'x';
            } else {
              newpart += part[j];
            }
          }
          // we test again with ASCII char only
          if (!newpart.match(hostnamePartPattern)) {
            var validParts = hostparts.slice(0, i);
            var notHost = hostparts.slice(i + 1);
            var bit = part.match(hostnamePartStart);
            if (bit) {
              validParts.push(bit[1]);
              notHost.unshift(bit[2]);
            }
            if (notHost.length) {
              rest = '/' + notHost.join('.') + rest;
            }
            this.hostname = validParts.join('.');
            break;
          }
        }
      }
    }

    if (this.hostname.length > hostnameMaxLen) {
      this.hostname = '';
    } else {
      // hostnames are always lower case.
      this.hostname = this.hostname.toLowerCase();
    }

    if (!ipv6Hostname) {
      // IDNA Support: Returns a puny coded representation of "domain".
      // It only converts the part of the domain name that
      // has non ASCII characters. I.e. it dosent matter if
      // you call it with a domain that already is in ASCII.
      var domainArray = this.hostname.split('.');
      var newOut = [];
      for (var i = 0; i < domainArray.length; ++i) {
        var s = domainArray[i];
        newOut.push(s.match(/[^A-Za-z0-9_-]/) ?
            'xn--' + punycode.encode(s) : s);
      }
      this.hostname = newOut.join('.');
    }

    var p = this.port ? ':' + this.port : '';
    var h = this.hostname || '';
    this.host = h + p;
    this.href += this.host;

    // strip [ and ] from the hostname
    // the host field still retains them, though
    if (ipv6Hostname) {
      this.hostname = this.hostname.substr(1, this.hostname.length - 2);
      if (rest[0] !== '/') {
        rest = '/' + rest;
      }
    }
  }

  // now rest is set to the post-host stuff.
  // chop off any delim chars.
  if (!unsafeProtocol[lowerProto]) {

    // First, make 100% sure that any "autoEscape" chars get
    // escaped, even if encodeURIComponent doesn't think they
    // need to be.
    for (var i = 0, l = autoEscape.length; i < l; i++) {
      var ae = autoEscape[i];
      var esc = encodeURIComponent(ae);
      if (esc === ae) {
        esc = escape(ae);
      }
      rest = rest.split(ae).join(esc);
    }
  }


  // chop off from the tail first.
  var hash = rest.indexOf('#');
  if (hash !== -1) {
    // got a fragment string.
    this.hash = rest.substr(hash);
    rest = rest.slice(0, hash);
  }
  var qm = rest.indexOf('?');
  if (qm !== -1) {
    this.search = rest.substr(qm);
    this.query = rest.substr(qm + 1);
    if (parseQueryString) {
      this.query = querystring.parse(this.query);
    }
    rest = rest.slice(0, qm);
  } else if (parseQueryString) {
    // no query string, but parseQueryString still requested
    this.search = '';
    this.query = {};
  }
  if (rest) this.pathname = rest;
  if (slashedProtocol[lowerProto] &&
      this.hostname && !this.pathname) {
    this.pathname = '/';
  }

  //to support http.request
  if (this.pathname || this.search) {
    var p = this.pathname || '';
    var s = this.search || '';
    this.path = p + s;
  }

  // finally, reconstruct the href based on what has been validated.
  this.href = this.format();
  return this;
};

// format a parsed object into a url string
function urlFormat(obj) {
  // ensure it's an object, and not a string url.
  // If it's an obj, this is a no-op.
  // this way, you can call url_format() on strings
  // to clean up potentially wonky urls.
  if (isString(obj)) obj = urlParse(obj);
  if (!(obj instanceof Url)) return Url.prototype.format.call(obj);
  return obj.format();
}

Url.prototype.format = function() {
  var auth = this.auth || '';
  if (auth) {
    auth = encodeURIComponent(auth);
    auth = auth.replace(/%3A/i, ':');
    auth += '@';
  }

  var protocol = this.protocol || '',
      pathname = this.pathname || '',
      hash = this.hash || '',
      host = false,
      query = '';

  if (this.host) {
    host = auth + this.host;
  } else if (this.hostname) {
    host = auth + (this.hostname.indexOf(':') === -1 ?
        this.hostname :
        '[' + this.hostname + ']');
    if (this.port) {
      host += ':' + this.port;
    }
  }

  if (this.query &&
      isObject(this.query) &&
      Object.keys(this.query).length) {
    query = querystring.stringify(this.query);
  }

  var search = this.search || (query && ('?' + query)) || '';

  if (protocol && protocol.substr(-1) !== ':') protocol += ':';

  // only the slashedProtocols get the //.  Not mailto:, xmpp:, etc.
  // unless they had them to begin with.
  if (this.slashes ||
      (!protocol || slashedProtocol[protocol]) && host !== false) {
    host = '//' + (host || '');
    if (pathname && pathname.charAt(0) !== '/') pathname = '/' + pathname;
  } else if (!host) {
    host = '';
  }

  if (hash && hash.charAt(0) !== '#') hash = '#' + hash;
  if (search && search.charAt(0) !== '?') search = '?' + search;

  pathname = pathname.replace(/[?#]/g, function(match) {
    return encodeURIComponent(match);
  });
  search = search.replace('#', '%23');

  return protocol + host + pathname + search + hash;
};

function urlResolve(source, relative) {
  return urlParse(source, false, true).resolve(relative);
}

Url.prototype.resolve = function(relative) {
  return this.resolveObject(urlParse(relative, false, true)).format();
};

function urlResolveObject(source, relative) {
  if (!source) return relative;
  return urlParse(source, false, true).resolveObject(relative);
}

Url.prototype.resolveObject = function(relative) {
  if (isString(relative)) {
    var rel = new Url();
    rel.parse(relative, false, true);
    relative = rel;
  }

  var result = new Url();
  Object.keys(this).forEach(function(k) {
    result[k] = this[k];
  }, this);

  // hash is always overridden, no matter what.
  // even href="" will remove it.
  result.hash = relative.hash;

  // if the relative url is empty, then there's nothing left to do here.
  if (relative.href === '') {
    result.href = result.format();
    return result;
  }

  // hrefs like //foo/bar always cut to the protocol.
  if (relative.slashes && !relative.protocol) {
    // take everything except the protocol from relative
    Object.keys(relative).forEach(function(k) {
      if (k !== 'protocol')
        result[k] = relative[k];
    });

    //urlParse appends trailing / to urls like http://www.example.com
    if (slashedProtocol[result.protocol] &&
        result.hostname && !result.pathname) {
      result.path = result.pathname = '/';
    }

    result.href = result.format();
    return result;
  }

  if (relative.protocol && relative.protocol !== result.protocol) {
    // if it's a known url protocol, then changing
    // the protocol does weird things
    // first, if it's not file:, then we MUST have a host,
    // and if there was a path
    // to begin with, then we MUST have a path.
    // if it is file:, then the host is dropped,
    // because that's known to be hostless.
    // anything else is assumed to be absolute.
    if (!slashedProtocol[relative.protocol]) {
      Object.keys(relative).forEach(function(k) {
        result[k] = relative[k];
      });
      result.href = result.format();
      return result;
    }

    result.protocol = relative.protocol;
    if (!relative.host && !hostlessProtocol[relative.protocol]) {
      var relPath = (relative.pathname || '').split('/');
      while (relPath.length && !(relative.host = relPath.shift()));
      if (!relative.host) relative.host = '';
      if (!relative.hostname) relative.hostname = '';
      if (relPath[0] !== '') relPath.unshift('');
      if (relPath.length < 2) relPath.unshift('');
      result.pathname = relPath.join('/');
    } else {
      result.pathname = relative.pathname;
    }
    result.search = relative.search;
    result.query = relative.query;
    result.host = relative.host || '';
    result.auth = relative.auth;
    result.hostname = relative.hostname || relative.host;
    result.port = relative.port;
    // to support http.request
    if (result.pathname || result.search) {
      var p = result.pathname || '';
      var s = result.search || '';
      result.path = p + s;
    }
    result.slashes = result.slashes || relative.slashes;
    result.href = result.format();
    return result;
  }

  var isSourceAbs = (result.pathname && result.pathname.charAt(0) === '/'),
      isRelAbs = (
          relative.host ||
          relative.pathname && relative.pathname.charAt(0) === '/'
      ),
      mustEndAbs = (isRelAbs || isSourceAbs ||
                    (result.host && relative.pathname)),
      removeAllDots = mustEndAbs,
      srcPath = result.pathname && result.pathname.split('/') || [],
      relPath = relative.pathname && relative.pathname.split('/') || [],
      psychotic = result.protocol && !slashedProtocol[result.protocol];

  // if the url is a non-slashed url, then relative
  // links like ../.. should be able
  // to crawl up to the hostname, as well.  This is strange.
  // result.protocol has already been set by now.
  // Later on, put the first path part into the host field.
  if (psychotic) {
    result.hostname = '';
    result.port = null;
    if (result.host) {
      if (srcPath[0] === '') srcPath[0] = result.host;
      else srcPath.unshift(result.host);
    }
    result.host = '';
    if (relative.protocol) {
      relative.hostname = null;
      relative.port = null;
      if (relative.host) {
        if (relPath[0] === '') relPath[0] = relative.host;
        else relPath.unshift(relative.host);
      }
      relative.host = null;
    }
    mustEndAbs = mustEndAbs && (relPath[0] === '' || srcPath[0] === '');
  }

  if (isRelAbs) {
    // it's absolute.
    result.host = (relative.host || relative.host === '') ?
                  relative.host : result.host;
    result.hostname = (relative.hostname || relative.hostname === '') ?
                      relative.hostname : result.hostname;
    result.search = relative.search;
    result.query = relative.query;
    srcPath = relPath;
    // fall through to the dot-handling below.
  } else if (relPath.length) {
    // it's relative
    // throw away the existing file, and take the new path instead.
    if (!srcPath) srcPath = [];
    srcPath.pop();
    srcPath = srcPath.concat(relPath);
    result.search = relative.search;
    result.query = relative.query;
  } else if (!isNullOrUndefined(relative.search)) {
    // just pull out the search.
    // like href='?foo'.
    // Put this after the other two cases because it simplifies the booleans
    if (psychotic) {
      result.hostname = result.host = srcPath.shift();
      //occationaly the auth can get stuck only in host
      //this especialy happens in cases like
      //url.resolveObject('mailto:local1@domain1', 'local2@domain2')
      var authInHost = result.host && result.host.indexOf('@') > 0 ?
                       result.host.split('@') : false;
      if (authInHost) {
        result.auth = authInHost.shift();
        result.host = result.hostname = authInHost.shift();
      }
    }
    result.search = relative.search;
    result.query = relative.query;
    //to support http.request
    if (!isNull(result.pathname) || !isNull(result.search)) {
      result.path = (result.pathname ? result.pathname : '') +
                    (result.search ? result.search : '');
    }
    result.href = result.format();
    return result;
  }

  if (!srcPath.length) {
    // no path at all.  easy.
    // we've already handled the other stuff above.
    result.pathname = null;
    //to support http.request
    if (result.search) {
      result.path = '/' + result.search;
    } else {
      result.path = null;
    }
    result.href = result.format();
    return result;
  }

  // if a url ENDs in . or .., then it must get a trailing slash.
  // however, if it ends in anything else non-slashy,
  // then it must NOT get a trailing slash.
  var last = srcPath.slice(-1)[0];
  var hasTrailingSlash = (
      (result.host || relative.host) && (last === '.' || last === '..') ||
      last === '');

  // strip single dots, resolve double dots to parent dir
  // if the path tries to go above the root, `up` ends up > 0
  var up = 0;
  for (var i = srcPath.length; i >= 0; i--) {
    last = srcPath[i];
    if (last == '.') {
      srcPath.splice(i, 1);
    } else if (last === '..') {
      srcPath.splice(i, 1);
      up++;
    } else if (up) {
      srcPath.splice(i, 1);
      up--;
    }
  }

  // if the path is allowed to go above the root, restore leading ..s
  if (!mustEndAbs && !removeAllDots) {
    for (; up--; up) {
      srcPath.unshift('..');
    }
  }

  if (mustEndAbs && srcPath[0] !== '' &&
      (!srcPath[0] || srcPath[0].charAt(0) !== '/')) {
    srcPath.unshift('');
  }

  if (hasTrailingSlash && (srcPath.join('/').substr(-1) !== '/')) {
    srcPath.push('');
  }

  var isAbsolute = srcPath[0] === '' ||
      (srcPath[0] && srcPath[0].charAt(0) === '/');

  // put the host back
  if (psychotic) {
    result.hostname = result.host = isAbsolute ? '' :
                                    srcPath.length ? srcPath.shift() : '';
    //occationaly the auth can get stuck only in host
    //this especialy happens in cases like
    //url.resolveObject('mailto:local1@domain1', 'local2@domain2')
    var authInHost = result.host && result.host.indexOf('@') > 0 ?
                     result.host.split('@') : false;
    if (authInHost) {
      result.auth = authInHost.shift();
      result.host = result.hostname = authInHost.shift();
    }
  }

  mustEndAbs = mustEndAbs || (result.host && srcPath.length);

  if (mustEndAbs && !isAbsolute) {
    srcPath.unshift('');
  }

  if (!srcPath.length) {
    result.pathname = null;
    result.path = null;
  } else {
    result.pathname = srcPath.join('/');
  }

  //to support request.http
  if (!isNull(result.pathname) || !isNull(result.search)) {
    result.path = (result.pathname ? result.pathname : '') +
                  (result.search ? result.search : '');
  }
  result.auth = relative.auth || result.auth;
  result.slashes = result.slashes || relative.slashes;
  result.href = result.format();
  return result;
};

Url.prototype.parseHost = function() {
  var host = this.host;
  var port = portPattern.exec(host);
  if (port) {
    port = port[0];
    if (port !== ':') {
      this.port = port.substr(1);
    }
    host = host.substr(0, host.length - port.length);
  }
  if (host) this.hostname = host;
};

function isString(arg) {
  return typeof arg === "string";
}

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}

function isNull(arg) {
  return arg === null;
}
function isNullOrUndefined(arg) {
  return  arg == null;
}

},{"punycode":14,"querystring":17}],27:[function(require,module,exports){
if (typeof Object.create === 'function') {
  // implementation from standard node.js 'util' module
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor
    ctor.prototype = Object.create(superCtor.prototype, {
      constructor: {
        value: ctor,
        enumerable: false,
        writable: true,
        configurable: true
      }
    });
  };
} else {
  // old school shim for old browsers
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor
    var TempCtor = function () {}
    TempCtor.prototype = superCtor.prototype
    ctor.prototype = new TempCtor()
    ctor.prototype.constructor = ctor
  }
}

},{}],28:[function(require,module,exports){
module.exports = function isBuffer(arg) {
  return arg && typeof arg === 'object'
    && typeof arg.copy === 'function'
    && typeof arg.fill === 'function'
    && typeof arg.readUInt8 === 'function';
}
},{}],29:[function(require,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var formatRegExp = /%[sdj%]/g;
exports.format = function(f) {
  if (!isString(f)) {
    var objects = [];
    for (var i = 0; i < arguments.length; i++) {
      objects.push(inspect(arguments[i]));
    }
    return objects.join(' ');
  }

  var i = 1;
  var args = arguments;
  var len = args.length;
  var str = String(f).replace(formatRegExp, function(x) {
    if (x === '%%') return '%';
    if (i >= len) return x;
    switch (x) {
      case '%s': return String(args[i++]);
      case '%d': return Number(args[i++]);
      case '%j':
        try {
          return JSON.stringify(args[i++]);
        } catch (_) {
          return '[Circular]';
        }
      default:
        return x;
    }
  });
  for (var x = args[i]; i < len; x = args[++i]) {
    if (isNull(x) || !isObject(x)) {
      str += ' ' + x;
    } else {
      str += ' ' + inspect(x);
    }
  }
  return str;
};


// Mark that a method should not be used.
// Returns a modified function which warns once by default.
// If --no-deprecation is set, then it is a no-op.
exports.deprecate = function(fn, msg) {
  // Allow for deprecating things in the process of starting up.
  if (isUndefined(global.process)) {
    return function() {
      return exports.deprecate(fn, msg).apply(this, arguments);
    };
  }

  if (process.noDeprecation === true) {
    return fn;
  }

  var warned = false;
  function deprecated() {
    if (!warned) {
      if (process.throwDeprecation) {
        throw new Error(msg);
      } else if (process.traceDeprecation) {
        console.trace(msg);
      } else {
        console.error(msg);
      }
      warned = true;
    }
    return fn.apply(this, arguments);
  }

  return deprecated;
};


var debugs = {};
var debugEnviron;
exports.debuglog = function(set) {
  if (isUndefined(debugEnviron))
    debugEnviron = process.env.NODE_DEBUG || '';
  set = set.toUpperCase();
  if (!debugs[set]) {
    if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
      var pid = process.pid;
      debugs[set] = function() {
        var msg = exports.format.apply(exports, arguments);
        console.error('%s %d: %s', set, pid, msg);
      };
    } else {
      debugs[set] = function() {};
    }
  }
  return debugs[set];
};


/**
 * Echos the value of a value. Trys to print the value out
 * in the best way possible given the different types.
 *
 * @param {Object} obj The object to print out.
 * @param {Object} opts Optional options object that alters the output.
 */
/* legacy: obj, showHidden, depth, colors*/
function inspect(obj, opts) {
  // default options
  var ctx = {
    seen: [],
    stylize: stylizeNoColor
  };
  // legacy...
  if (arguments.length >= 3) ctx.depth = arguments[2];
  if (arguments.length >= 4) ctx.colors = arguments[3];
  if (isBoolean(opts)) {
    // legacy...
    ctx.showHidden = opts;
  } else if (opts) {
    // got an "options" object
    exports._extend(ctx, opts);
  }
  // set default options
  if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
  if (isUndefined(ctx.depth)) ctx.depth = 2;
  if (isUndefined(ctx.colors)) ctx.colors = false;
  if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
  if (ctx.colors) ctx.stylize = stylizeWithColor;
  return formatValue(ctx, obj, ctx.depth);
}
exports.inspect = inspect;


// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
inspect.colors = {
  'bold' : [1, 22],
  'italic' : [3, 23],
  'underline' : [4, 24],
  'inverse' : [7, 27],
  'white' : [37, 39],
  'grey' : [90, 39],
  'black' : [30, 39],
  'blue' : [34, 39],
  'cyan' : [36, 39],
  'green' : [32, 39],
  'magenta' : [35, 39],
  'red' : [31, 39],
  'yellow' : [33, 39]
};

// Don't use 'blue' not visible on cmd.exe
inspect.styles = {
  'special': 'cyan',
  'number': 'yellow',
  'boolean': 'yellow',
  'undefined': 'grey',
  'null': 'bold',
  'string': 'green',
  'date': 'magenta',
  // "name": intentionally not styling
  'regexp': 'red'
};


function stylizeWithColor(str, styleType) {
  var style = inspect.styles[styleType];

  if (style) {
    return '\u001b[' + inspect.colors[style][0] + 'm' + str +
           '\u001b[' + inspect.colors[style][1] + 'm';
  } else {
    return str;
  }
}


function stylizeNoColor(str, styleType) {
  return str;
}


function arrayToHash(array) {
  var hash = {};

  array.forEach(function(val, idx) {
    hash[val] = true;
  });

  return hash;
}


function formatValue(ctx, value, recurseTimes) {
  // Provide a hook for user-specified inspect functions.
  // Check that value is an object with an inspect function on it
  if (ctx.customInspect &&
      value &&
      isFunction(value.inspect) &&
      // Filter out the util module, it's inspect function is special
      value.inspect !== exports.inspect &&
      // Also filter out any prototype objects using the circular check.
      !(value.constructor && value.constructor.prototype === value)) {
    var ret = value.inspect(recurseTimes, ctx);
    if (!isString(ret)) {
      ret = formatValue(ctx, ret, recurseTimes);
    }
    return ret;
  }

  // Primitive types cannot have properties
  var primitive = formatPrimitive(ctx, value);
  if (primitive) {
    return primitive;
  }

  // Look up the keys of the object.
  var keys = Object.keys(value);
  var visibleKeys = arrayToHash(keys);

  if (ctx.showHidden) {
    keys = Object.getOwnPropertyNames(value);
  }

  // IE doesn't make error fields non-enumerable
  // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
  if (isError(value)
      && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
    return formatError(value);
  }

  // Some type of object without properties can be shortcutted.
  if (keys.length === 0) {
    if (isFunction(value)) {
      var name = value.name ? ': ' + value.name : '';
      return ctx.stylize('[Function' + name + ']', 'special');
    }
    if (isRegExp(value)) {
      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
    }
    if (isDate(value)) {
      return ctx.stylize(Date.prototype.toString.call(value), 'date');
    }
    if (isError(value)) {
      return formatError(value);
    }
  }

  var base = '', array = false, braces = ['{', '}'];

  // Make Array say that they are Array
  if (isArray(value)) {
    array = true;
    braces = ['[', ']'];
  }

  // Make functions say that they are functions
  if (isFunction(value)) {
    var n = value.name ? ': ' + value.name : '';
    base = ' [Function' + n + ']';
  }

  // Make RegExps say that they are RegExps
  if (isRegExp(value)) {
    base = ' ' + RegExp.prototype.toString.call(value);
  }

  // Make dates with properties first say the date
  if (isDate(value)) {
    base = ' ' + Date.prototype.toUTCString.call(value);
  }

  // Make error with message first say the error
  if (isError(value)) {
    base = ' ' + formatError(value);
  }

  if (keys.length === 0 && (!array || value.length == 0)) {
    return braces[0] + base + braces[1];
  }

  if (recurseTimes < 0) {
    if (isRegExp(value)) {
      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
    } else {
      return ctx.stylize('[Object]', 'special');
    }
  }

  ctx.seen.push(value);

  var output;
  if (array) {
    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
  } else {
    output = keys.map(function(key) {
      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
    });
  }

  ctx.seen.pop();

  return reduceToSingleString(output, base, braces);
}


function formatPrimitive(ctx, value) {
  if (isUndefined(value))
    return ctx.stylize('undefined', 'undefined');
  if (isString(value)) {
    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
                                             .replace(/'/g, "\\'")
                                             .replace(/\\"/g, '"') + '\'';
    return ctx.stylize(simple, 'string');
  }
  if (isNumber(value))
    return ctx.stylize('' + value, 'number');
  if (isBoolean(value))
    return ctx.stylize('' + value, 'boolean');
  // For some reason typeof null is "object", so special case here.
  if (isNull(value))
    return ctx.stylize('null', 'null');
}


function formatError(value) {
  return '[' + Error.prototype.toString.call(value) + ']';
}


function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
  var output = [];
  for (var i = 0, l = value.length; i < l; ++i) {
    if (hasOwnProperty(value, String(i))) {
      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
          String(i), true));
    } else {
      output.push('');
    }
  }
  keys.forEach(function(key) {
    if (!key.match(/^\d+$/)) {
      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
          key, true));
    }
  });
  return output;
}


function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
  var name, str, desc;
  desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
  if (desc.get) {
    if (desc.set) {
      str = ctx.stylize('[Getter/Setter]', 'special');
    } else {
      str = ctx.stylize('[Getter]', 'special');
    }
  } else {
    if (desc.set) {
      str = ctx.stylize('[Setter]', 'special');
    }
  }
  if (!hasOwnProperty(visibleKeys, key)) {
    name = '[' + key + ']';
  }
  if (!str) {
    if (ctx.seen.indexOf(desc.value) < 0) {
      if (isNull(recurseTimes)) {
        str = formatValue(ctx, desc.value, null);
      } else {
        str = formatValue(ctx, desc.value, recurseTimes - 1);
      }
      if (str.indexOf('\n') > -1) {
        if (array) {
          str = str.split('\n').map(function(line) {
            return '  ' + line;
          }).join('\n').substr(2);
        } else {
          str = '\n' + str.split('\n').map(function(line) {
            return '   ' + line;
          }).join('\n');
        }
      }
    } else {
      str = ctx.stylize('[Circular]', 'special');
    }
  }
  if (isUndefined(name)) {
    if (array && key.match(/^\d+$/)) {
      return str;
    }
    name = JSON.stringify('' + key);
    if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
      name = name.substr(1, name.length - 2);
      name = ctx.stylize(name, 'name');
    } else {
      name = name.replace(/'/g, "\\'")
                 .replace(/\\"/g, '"')
                 .replace(/(^"|"$)/g, "'");
      name = ctx.stylize(name, 'string');
    }
  }

  return name + ': ' + str;
}


function reduceToSingleString(output, base, braces) {
  var numLinesEst = 0;
  var length = output.reduce(function(prev, cur) {
    numLinesEst++;
    if (cur.indexOf('\n') >= 0) numLinesEst++;
    return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
  }, 0);

  if (length > 60) {
    return braces[0] +
           (base === '' ? '' : base + '\n ') +
           ' ' +
           output.join(',\n  ') +
           ' ' +
           braces[1];
  }

  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
}


// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.
function isArray(ar) {
  return Array.isArray(ar);
}
exports.isArray = isArray;

function isBoolean(arg) {
  return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;

function isNull(arg) {
  return arg === null;
}
exports.isNull = isNull;

function isNullOrUndefined(arg) {
  return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;

function isNumber(arg) {
  return typeof arg === 'number';
}
exports.isNumber = isNumber;

function isString(arg) {
  return typeof arg === 'string';
}
exports.isString = isString;

function isSymbol(arg) {
  return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;

function isUndefined(arg) {
  return arg === void 0;
}
exports.isUndefined = isUndefined;

function isRegExp(re) {
  return isObject(re) && objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;

function isDate(d) {
  return isObject(d) && objectToString(d) === '[object Date]';
}
exports.isDate = isDate;

function isError(e) {
  return isObject(e) &&
      (objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;

function isFunction(arg) {
  return typeof arg === 'function';
}
exports.isFunction = isFunction;

function isPrimitive(arg) {
  return arg === null ||
         typeof arg === 'boolean' ||
         typeof arg === 'number' ||
         typeof arg === 'string' ||
         typeof arg === 'symbol' ||  // ES6 symbol
         typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;

exports.isBuffer = require('./support/isBuffer');

function objectToString(o) {
  return Object.prototype.toString.call(o);
}


function pad(n) {
  return n < 10 ? '0' + n.toString(10) : n.toString(10);
}


var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
              'Oct', 'Nov', 'Dec'];

// 26 Feb 16:19:34
function timestamp() {
  var d = new Date();
  var time = [pad(d.getHours()),
              pad(d.getMinutes()),
              pad(d.getSeconds())].join(':');
  return [d.getDate(), months[d.getMonth()], time].join(' ');
}


// log is just a thin wrapper to console.log that prepends a timestamp
exports.log = function() {
  console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
};


/**
 * Inherit the prototype methods from one constructor into another.
 *
 * The Function.prototype.inherits from lang.js rewritten as a standalone
 * function (not on Function.prototype). NOTE: If this file is to be loaded
 * during bootstrapping this function needs to be rewritten using some native
 * functions as prototype setup using normal JavaScript does not work as
 * expected during bootstrapping (see mirror.js in r114903).
 *
 * @param {function} ctor Constructor function which needs to inherit the
 *     prototype.
 * @param {function} superCtor Constructor function to inherit prototype from.
 */
exports.inherits = require('inherits');

exports._extend = function(origin, add) {
  // Don't do anything if add isn't an object
  if (!add || !isObject(add)) return origin;

  var keys = Object.keys(add);
  var i = keys.length;
  while (i--) {
    origin[keys[i]] = add[keys[i]];
  }
  return origin;
};

function hasOwnProperty(obj, prop) {
  return Object.prototype.hasOwnProperty.call(obj, prop);
}

}).call(this,require("g5I+bs"),typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./support/isBuffer":28,"g5I+bs":13,"inherits":27}],30:[function(require,module,exports){
var http = require('http');
var Stream = require('stream');
var encode = typeof encodeURIComponent !== 'undefined'
    ? encodeURIComponent : escape
;

module.exports = function (opts) {
    if (typeof opts === 'string') {
        opts = { path : opts };
    }
    if (!opts) opts = {};
    if (!opts.id) {
        opts.id = Math.floor(Math.pow(16, 8) * Math.random()).toString(16);
    }
    
    var stream = new Stream;
    stream.writable = true;
    stream.order = 0;
    
    stream.write = function (msg) {
        if (stream.ended) return;
        var data = 'order=' + stream.order
            + '&data=' + encode(msg)
            + '&id=' + encode(opts.id)
        ;
        stream.order ++;
        send(data);
    };
    
    stream.destroy = function () {
        stream.ended = true;
        stream.emit('close');
    };
    
    stream.end = function (msg) {
        if (stream.ended) return;
        
        var data = 'order=' + stream.order
            + '&id=' + encode(opts.id)
            + '&end=true'
        ;
        if (msg !== undefined) data += '&data=' + encode(msg);
        stream.order ++;
        send(data);
        stream.ended = true;
        stream.emit('close');
    };
    
    function send (data) {
        var params = {
            method : 'POST',
            host : opts.host || window.location.hostname,
            port : opts.port || window.location.port,
            path : opts.path || '/',
            headers : {
                'content-type' : 'application/x-www-form-urlencoded'
            }
        };
        var req = http.request(params);
        req.end(data);
    }
    
    return stream
};

},{"http":6,"stream":19}]},{},[1])</script><script>(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
'use strict';

// modified from https://github.com/es-shims/es6-shim
var keys = require('object-keys');
var hasSymbols = require('has-symbols/shams')();
var callBound = require('call-bind/callBound');
var toObject = Object;
var $push = callBound('Array.prototype.push');
var $propIsEnumerable = callBound('Object.prototype.propertyIsEnumerable');
var originalGetSymbols = hasSymbols ? Object.getOwnPropertySymbols : null;

// eslint-disable-next-line no-unused-vars
module.exports = function assign(target, source1) {
	if (target == null) { throw new TypeError('target must be an object'); }
	var objTarget = toObject(target);
	var s, source, i, props, syms, value, key;
	for (s = 1; s < arguments.length; ++s) {
		source = toObject(arguments[s]);
		props = keys(source);
		var getSymbols = hasSymbols && (Object.getOwnPropertySymbols || originalGetSymbols);
		if (getSymbols) {
			syms = getSymbols(source);
			for (i = 0; i < syms.length; ++i) {
				key = syms[i];
				if ($propIsEnumerable(source, key)) {
					$push(props, key);
				}
			}
		}
		for (i = 0; i < props.length; ++i) {
			key = props[i];
			value = source[key];
			if ($propIsEnumerable(source, key)) {
				objTarget[key] = value;
			}
		}
	}
	return objTarget;
};

},{"call-bind/callBound":11,"has-symbols/shams":43,"object-keys":71}],2:[function(require,module,exports){
'use strict';

var defineProperties = require('define-properties');
var callBind = require('call-bind');

var implementation = require('./implementation');
var getPolyfill = require('./polyfill');
var shim = require('./shim');

var polyfill = callBind.apply(getPolyfill());
// eslint-disable-next-line no-unused-vars
var bound = function assign(target, source1) {
	return polyfill(Object, arguments);
};

defineProperties(bound, {
	getPolyfill: getPolyfill,
	implementation: implementation,
	shim: shim
});

module.exports = bound;

},{"./implementation":1,"./polyfill":116,"./shim":117,"call-bind":12,"define-properties":16}],3:[function(require,module,exports){
'use strict';

var IsCallable = require('es-abstract/2021/IsCallable');
var ToObject = require('es-abstract/2021/ToObject');
var ToUint32 = require('es-abstract/2021/ToUint32');
var callBound = require('call-bind/callBound');
var isString = require('is-string');

// Check failure of by-index access of string characters (IE < 9) and failure of `0 in boxedString` (Rhino)
var boxedString = Object('a');
var splitString = boxedString[0] !== 'a' || !(0 in boxedString);

var $split = callBound('String.prototype.split');

module.exports = function every(callbackfn) {
	var O = ToObject(this);
	var self = splitString && isString(O) ? $split(O, '') : O;
	var len = ToUint32(self.length);
	var T;
	if (arguments.length > 1) {
		T = arguments[1];
	}

	// If no callback function or if callback is not a callable function
	if (!IsCallable(callbackfn)) {
		throw new TypeError('Array.prototype.every callback must be a function');
	}

	for (var i = 0; i < len; i++) {
		if (i in self && !(typeof T === 'undefined' ? callbackfn(self[i], i, O) : callbackfn.call(T, self[i], i, O))) {
			return false;
		}
	}
	return true;
};

},{"call-bind/callBound":11,"es-abstract/2021/IsCallable":18,"es-abstract/2021/ToObject":21,"es-abstract/2021/ToUint32":24,"is-string":57}],4:[function(require,module,exports){
'use strict';

var define = require('define-properties');
var RequireObjectCoercible = require('es-abstract/2021/RequireObjectCoercible');
var callBound = require('call-bind/callBound');

var implementation = require('./implementation');
var getPolyfill = require('./polyfill');
var polyfill = getPolyfill();
var shim = require('./shim');

var $slice = callBound('Array.prototype.slice');

// eslint-disable-next-line no-unused-vars
var boundEveryShim = function every(array, callbackfn) {
	RequireObjectCoercible(array);
	return polyfill.apply(array, $slice(arguments, 1));
};
define(boundEveryShim, {
	getPolyfill: getPolyfill,
	implementation: implementation,
	shim: shim
});

module.exports = boundEveryShim;

},{"./implementation":3,"./polyfill":5,"./shim":6,"call-bind/callBound":11,"define-properties":16,"es-abstract/2021/RequireObjectCoercible":19}],5:[function(require,module,exports){
var implementation = require('./implementation');

module.exports = function getPolyfill() {
	if (typeof Array.prototype.every === 'function') {
		var hasPrimitiveContextInStrict = [1].every(function () {
			'use strict';

			return typeof this === 'string' && this === 'x';
		}, 'x');
		if (hasPrimitiveContextInStrict) {
			return Array.prototype.every;
		}
	}
	return implementation;
};

},{"./implementation":3}],6:[function(require,module,exports){
'use strict';

var define = require('define-properties');
var getPolyfill = require('./polyfill');

module.exports = function shimArrayPrototypeEvery() {
	var polyfill = getPolyfill();
	define(
		Array.prototype,
		{ every: polyfill },
		{ every: function () { return Array.prototype.every !== polyfill; } }
	);
	return polyfill;
};

},{"./polyfill":5,"define-properties":16}],7:[function(require,module,exports){
(function (global){(function (){
'use strict';

var possibleNames = [
	'BigInt64Array',
	'BigUint64Array',
	'Float32Array',
	'Float64Array',
	'Int16Array',
	'Int32Array',
	'Int8Array',
	'Uint16Array',
	'Uint32Array',
	'Uint8Array',
	'Uint8ClampedArray'
];

var g = typeof globalThis === 'undefined' ? global : globalThis;

module.exports = function availableTypedArrays() {
	var out = [];
	for (var i = 0; i < possibleNames.length; i++) {
		if (typeof g[possibleNames[i]] === 'function') {
			out[out.length] = possibleNames[i];
		}
	}
	return out;
};

}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})

},{}],8:[function(require,module,exports){
'use strict'

exports.byteLength = byteLength
exports.toByteArray = toByteArray
exports.fromByteArray = fromByteArray

var lookup = []
var revLookup = []
var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array

var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
for (var i = 0, len = code.length; i < len; ++i) {
  lookup[i] = code[i]
  revLookup[code.charCodeAt(i)] = i
}

// Support decoding URL-safe base64 strings, as Node.js does.
// See: https://en.wikipedia.org/wiki/Base64#URL_applications
revLookup['-'.charCodeAt(0)] = 62
revLookup['_'.charCodeAt(0)] = 63

function getLens (b64) {
  var len = b64.length

  if (len % 4 > 0) {
    throw new Error('Invalid string. Length must be a multiple of 4')
  }

  // Trim off extra bytes after placeholder bytes are found
  // See: https://github.com/beatgammit/base64-js/issues/42
  var validLen = b64.indexOf('=')
  if (validLen === -1) validLen = len

  var placeHoldersLen = validLen === len
    ? 0
    : 4 - (validLen % 4)

  return [validLen, placeHoldersLen]
}

// base64 is 4/3 + up to two characters of the original data
function byteLength (b64) {
  var lens = getLens(b64)
  var validLen = lens[0]
  var placeHoldersLen = lens[1]
  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
}

function _byteLength (b64, validLen, placeHoldersLen) {
  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
}

function toByteArray (b64) {
  var tmp
  var lens = getLens(b64)
  var validLen = lens[0]
  var placeHoldersLen = lens[1]

  var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))

  var curByte = 0

  // if there are placeholders, only get up to the last complete 4 chars
  var len = placeHoldersLen > 0
    ? validLen - 4
    : validLen

  var i
  for (i = 0; i < len; i += 4) {
    tmp =
      (revLookup[b64.charCodeAt(i)] << 18) |
      (revLookup[b64.charCodeAt(i + 1)] << 12) |
      (revLookup[b64.charCodeAt(i + 2)] << 6) |
      revLookup[b64.charCodeAt(i + 3)]
    arr[curByte++] = (tmp >> 16) & 0xFF
    arr[curByte++] = (tmp >> 8) & 0xFF
    arr[curByte++] = tmp & 0xFF
  }

  if (placeHoldersLen === 2) {
    tmp =
      (revLookup[b64.charCodeAt(i)] << 2) |
      (revLookup[b64.charCodeAt(i + 1)] >> 4)
    arr[curByte++] = tmp & 0xFF
  }

  if (placeHoldersLen === 1) {
    tmp =
      (revLookup[b64.charCodeAt(i)] << 10) |
      (revLookup[b64.charCodeAt(i + 1)] << 4) |
      (revLookup[b64.charCodeAt(i + 2)] >> 2)
    arr[curByte++] = (tmp >> 8) & 0xFF
    arr[curByte++] = tmp & 0xFF
  }

  return arr
}

function tripletToBase64 (num) {
  return lookup[num >> 18 & 0x3F] +
    lookup[num >> 12 & 0x3F] +
    lookup[num >> 6 & 0x3F] +
    lookup[num & 0x3F]
}

function encodeChunk (uint8, start, end) {
  var tmp
  var output = []
  for (var i = start; i < end; i += 3) {
    tmp =
      ((uint8[i] << 16) & 0xFF0000) +
      ((uint8[i + 1] << 8) & 0xFF00) +
      (uint8[i + 2] & 0xFF)
    output.push(tripletToBase64(tmp))
  }
  return output.join('')
}

function fromByteArray (uint8) {
  var tmp
  var len = uint8.length
  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
  var parts = []
  var maxChunkLength = 16383 // must be multiple of 3

  // go through the array every three bytes, we'll deal with trailing stuff later
  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
    parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
  }

  // pad the end with zeros, but make sure to not forget the extra bytes
  if (extraBytes === 1) {
    tmp = uint8[len - 1]
    parts.push(
      lookup[tmp >> 2] +
      lookup[(tmp << 4) & 0x3F] +
      '=='
    )
  } else if (extraBytes === 2) {
    tmp = (uint8[len - 2] << 8) + uint8[len - 1]
    parts.push(
      lookup[tmp >> 10] +
      lookup[(tmp >> 4) & 0x3F] +
      lookup[(tmp << 2) & 0x3F] +
      '='
    )
  }

  return parts.join('')
}

},{}],9:[function(require,module,exports){

},{}],10:[function(require,module,exports){
(function (Buffer){(function (){
/*!
 * The buffer module from node.js, for the browser.
 *
 * @author   Feross Aboukhadijeh <https://feross.org>
 * @license  MIT
 */
/* eslint-disable no-proto */

'use strict'

var base64 = require('base64-js')
var ieee754 = require('ieee754')

exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50

var K_MAX_LENGTH = 0x7fffffff
exports.kMaxLength = K_MAX_LENGTH

/**
 * If `Buffer.TYPED_ARRAY_SUPPORT`:
 *   === true    Use Uint8Array implementation (fastest)
 *   === false   Print warning and recommend using `buffer` v4.x which has an Object
 *               implementation (most compatible, even IE6)
 *
 * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
 * Opera 11.6+, iOS 4.2+.
 *
 * We report that the browser does not support typed arrays if the are not subclassable
 * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
 * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
 * for __proto__ and has a buggy typed array implementation.
 */
Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()

if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
    typeof console.error === 'function') {
  console.error(
    'This browser lacks typed array (Uint8Array) support which is required by ' +
    '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
  )
}

function typedArraySupport () {
  // Can typed array instances can be augmented?
  try {
    var arr = new Uint8Array(1)
    arr.__proto__ = { __proto__: Uint8Array.prototype, foo: function () { return 42 } }
    return arr.foo() === 42
  } catch (e) {
    return false
  }
}

Object.defineProperty(Buffer.prototype, 'parent', {
  enumerable: true,
  get: function () {
    if (!Buffer.isBuffer(this)) return undefined
    return this.buffer
  }
})

Object.defineProperty(Buffer.prototype, 'offset', {
  enumerable: true,
  get: function () {
    if (!Buffer.isBuffer(this)) return undefined
    return this.byteOffset
  }
})

function createBuffer (length) {
  if (length > K_MAX_LENGTH) {
    throw new RangeError('The value "' + length + '" is invalid for option "size"')
  }
  // Return an augmented `Uint8Array` instance
  var buf = new Uint8Array(length)
  buf.__proto__ = Buffer.prototype
  return buf
}

/**
 * The Buffer constructor returns instances of `Uint8Array` that have their
 * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
 * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
 * and the `Uint8Array` methods. Square bracket notation works as expected -- it
 * returns a single octet.
 *
 * The `Uint8Array` prototype remains unmodified.
 */

function Buffer (arg, encodingOrOffset, length) {
  // Common case.
  if (typeof arg === 'number') {
    if (typeof encodingOrOffset === 'string') {
      throw new TypeError(
        'The "string" argument must be of type string. Received type number'
      )
    }
    return allocUnsafe(arg)
  }
  return from(arg, encodingOrOffset, length)
}

// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
if (typeof Symbol !== 'undefined' && Symbol.species != null &&
    Buffer[Symbol.species] === Buffer) {
  Object.defineProperty(Buffer, Symbol.species, {
    value: null,
    configurable: true,
    enumerable: false,
    writable: false
  })
}

Buffer.poolSize = 8192 // not used by this implementation

function from (value, encodingOrOffset, length) {
  if (typeof value === 'string') {
    return fromString(value, encodingOrOffset)
  }

  if (ArrayBuffer.isView(value)) {
    return fromArrayLike(value)
  }

  if (value == null) {
    throw TypeError(
      'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
      'or Array-like Object. Received type ' + (typeof value)
    )
  }

  if (isInstance(value, ArrayBuffer) ||
      (value && isInstance(value.buffer, ArrayBuffer))) {
    return fromArrayBuffer(value, encodingOrOffset, length)
  }

  if (typeof value === 'number') {
    throw new TypeError(
      'The "value" argument must not be of type number. Received type number'
    )
  }

  var valueOf = value.valueOf && value.valueOf()
  if (valueOf != null && valueOf !== value) {
    return Buffer.from(valueOf, encodingOrOffset, length)
  }

  var b = fromObject(value)
  if (b) return b

  if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&
      typeof value[Symbol.toPrimitive] === 'function') {
    return Buffer.from(
      value[Symbol.toPrimitive]('string'), encodingOrOffset, length
    )
  }

  throw new TypeError(
    'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
    'or Array-like Object. Received type ' + (typeof value)
  )
}

/**
 * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
 * if value is a number.
 * Buffer.from(str[, encoding])
 * Buffer.from(array)
 * Buffer.from(buffer)
 * Buffer.from(arrayBuffer[, byteOffset[, length]])
 **/
Buffer.from = function (value, encodingOrOffset, length) {
  return from(value, encodingOrOffset, length)
}

// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
// https://github.com/feross/buffer/pull/148
Buffer.prototype.__proto__ = Uint8Array.prototype
Buffer.__proto__ = Uint8Array

function assertSize (size) {
  if (typeof size !== 'number') {
    throw new TypeError('"size" argument must be of type number')
  } else if (size < 0) {
    throw new RangeError('The value "' + size + '" is invalid for option "size"')
  }
}

function alloc (size, fill, encoding) {
  assertSize(size)
  if (size <= 0) {
    return createBuffer(size)
  }
  if (fill !== undefined) {
    // Only pay attention to encoding if it's a string. This
    // prevents accidentally sending in a number that would
    // be interpretted as a start offset.
    return typeof encoding === 'string'
      ? createBuffer(size).fill(fill, encoding)
      : createBuffer(size).fill(fill)
  }
  return createBuffer(size)
}

/**
 * Creates a new filled Buffer instance.
 * alloc(size[, fill[, encoding]])
 **/
Buffer.alloc = function (size, fill, encoding) {
  return alloc(size, fill, encoding)
}

function allocUnsafe (size) {
  assertSize(size)
  return createBuffer(size < 0 ? 0 : checked(size) | 0)
}

/**
 * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
 * */
Buffer.allocUnsafe = function (size) {
  return allocUnsafe(size)
}
/**
 * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
 */
Buffer.allocUnsafeSlow = function (size) {
  return allocUnsafe(size)
}

function fromString (string, encoding) {
  if (typeof encoding !== 'string' || encoding === '') {
    encoding = 'utf8'
  }

  if (!Buffer.isEncoding(encoding)) {
    throw new TypeError('Unknown encoding: ' + encoding)
  }

  var length = byteLength(string, encoding) | 0
  var buf = createBuffer(length)

  var actual = buf.write(string, encoding)

  if (actual !== length) {
    // Writing a hex string, for example, that contains invalid characters will
    // cause everything after the first invalid character to be ignored. (e.g.
    // 'abxxcd' will be treated as 'ab')
    buf = buf.slice(0, actual)
  }

  return buf
}

function fromArrayLike (array) {
  var length = array.length < 0 ? 0 : checked(array.length) | 0
  var buf = createBuffer(length)
  for (var i = 0; i < length; i += 1) {
    buf[i] = array[i] & 255
  }
  return buf
}

function fromArrayBuffer (array, byteOffset, length) {
  if (byteOffset < 0 || array.byteLength < byteOffset) {
    throw new RangeError('"offset" is outside of buffer bounds')
  }

  if (array.byteLength < byteOffset + (length || 0)) {
    throw new RangeError('"length" is outside of buffer bounds')
  }

  var buf
  if (byteOffset === undefined && length === undefined) {
    buf = new Uint8Array(array)
  } else if (length === undefined) {
    buf = new Uint8Array(array, byteOffset)
  } else {
    buf = new Uint8Array(array, byteOffset, length)
  }

  // Return an augmented `Uint8Array` instance
  buf.__proto__ = Buffer.prototype
  return buf
}

function fromObject (obj) {
  if (Buffer.isBuffer(obj)) {
    var len = checked(obj.length) | 0
    var buf = createBuffer(len)

    if (buf.length === 0) {
      return buf
    }

    obj.copy(buf, 0, 0, len)
    return buf
  }

  if (obj.length !== undefined) {
    if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
      return createBuffer(0)
    }
    return fromArrayLike(obj)
  }

  if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
    return fromArrayLike(obj.data)
  }
}

function checked (length) {
  // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
  // length is NaN (which is otherwise coerced to zero.)
  if (length >= K_MAX_LENGTH) {
    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
                         'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
  }
  return length | 0
}

function SlowBuffer (length) {
  if (+length != length) { // eslint-disable-line eqeqeq
    length = 0
  }
  return Buffer.alloc(+length)
}

Buffer.isBuffer = function isBuffer (b) {
  return b != null && b._isBuffer === true &&
    b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false
}

Buffer.compare = function compare (a, b) {
  if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength)
  if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength)
  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
    throw new TypeError(
      'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array'
    )
  }

  if (a === b) return 0

  var x = a.length
  var y = b.length

  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
    if (a[i] !== b[i]) {
      x = a[i]
      y = b[i]
      break
    }
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

Buffer.isEncoding = function isEncoding (encoding) {
  switch (String(encoding).toLowerCase()) {
    case 'hex':
    case 'utf8':
    case 'utf-8':
    case 'ascii':
    case 'latin1':
    case 'binary':
    case 'base64':
    case 'ucs2':
    case 'ucs-2':
    case 'utf16le':
    case 'utf-16le':
      return true
    default:
      return false
  }
}

Buffer.concat = function concat (list, length) {
  if (!Array.isArray(list)) {
    throw new TypeError('"list" argument must be an Array of Buffers')
  }

  if (list.length === 0) {
    return Buffer.alloc(0)
  }

  var i
  if (length === undefined) {
    length = 0
    for (i = 0; i < list.length; ++i) {
      length += list[i].length
    }
  }

  var buffer = Buffer.allocUnsafe(length)
  var pos = 0
  for (i = 0; i < list.length; ++i) {
    var buf = list[i]
    if (isInstance(buf, Uint8Array)) {
      buf = Buffer.from(buf)
    }
    if (!Buffer.isBuffer(buf)) {
      throw new TypeError('"list" argument must be an Array of Buffers')
    }
    buf.copy(buffer, pos)
    pos += buf.length
  }
  return buffer
}

function byteLength (string, encoding) {
  if (Buffer.isBuffer(string)) {
    return string.length
  }
  if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {
    return string.byteLength
  }
  if (typeof string !== 'string') {
    throw new TypeError(
      'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' +
      'Received type ' + typeof string
    )
  }

  var len = string.length
  var mustMatch = (arguments.length > 2 && arguments[2] === true)
  if (!mustMatch && len === 0) return 0

  // Use a for loop to avoid recursion
  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'ascii':
      case 'latin1':
      case 'binary':
        return len
      case 'utf8':
      case 'utf-8':
        return utf8ToBytes(string).length
      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return len * 2
      case 'hex':
        return len >>> 1
      case 'base64':
        return base64ToBytes(string).length
      default:
        if (loweredCase) {
          return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8
        }
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}
Buffer.byteLength = byteLength

function slowToString (encoding, start, end) {
  var loweredCase = false

  // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
  // property of a typed array.

  // This behaves neither like String nor Uint8Array in that we set start/end
  // to their upper/lower bounds if the value passed is out of range.
  // undefined is handled specially as per ECMA-262 6th Edition,
  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
  if (start === undefined || start < 0) {
    start = 0
  }
  // Return early if start > this.length. Done here to prevent potential uint32
  // coercion fail below.
  if (start > this.length) {
    return ''
  }

  if (end === undefined || end > this.length) {
    end = this.length
  }

  if (end <= 0) {
    return ''
  }

  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
  end >>>= 0
  start >>>= 0

  if (end <= start) {
    return ''
  }

  if (!encoding) encoding = 'utf8'

  while (true) {
    switch (encoding) {
      case 'hex':
        return hexSlice(this, start, end)

      case 'utf8':
      case 'utf-8':
        return utf8Slice(this, start, end)

      case 'ascii':
        return asciiSlice(this, start, end)

      case 'latin1':
      case 'binary':
        return latin1Slice(this, start, end)

      case 'base64':
        return base64Slice(this, start, end)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return utf16leSlice(this, start, end)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = (encoding + '').toLowerCase()
        loweredCase = true
    }
  }
}

// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
// reliably in a browserify context because there could be multiple different
// copies of the 'buffer' package in use. This method works even for Buffer
// instances that were created from another copy of the `buffer` package.
// See: https://github.com/feross/buffer/issues/154
Buffer.prototype._isBuffer = true

function swap (b, n, m) {
  var i = b[n]
  b[n] = b[m]
  b[m] = i
}

Buffer.prototype.swap16 = function swap16 () {
  var len = this.length
  if (len % 2 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 16-bits')
  }
  for (var i = 0; i < len; i += 2) {
    swap(this, i, i + 1)
  }
  return this
}

Buffer.prototype.swap32 = function swap32 () {
  var len = this.length
  if (len % 4 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 32-bits')
  }
  for (var i = 0; i < len; i += 4) {
    swap(this, i, i + 3)
    swap(this, i + 1, i + 2)
  }
  return this
}

Buffer.prototype.swap64 = function swap64 () {
  var len = this.length
  if (len % 8 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 64-bits')
  }
  for (var i = 0; i < len; i += 8) {
    swap(this, i, i + 7)
    swap(this, i + 1, i + 6)
    swap(this, i + 2, i + 5)
    swap(this, i + 3, i + 4)
  }
  return this
}

Buffer.prototype.toString = function toString () {
  var length = this.length
  if (length === 0) return ''
  if (arguments.length === 0) return utf8Slice(this, 0, length)
  return slowToString.apply(this, arguments)
}

Buffer.prototype.toLocaleString = Buffer.prototype.toString

Buffer.prototype.equals = function equals (b) {
  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
  if (this === b) return true
  return Buffer.compare(this, b) === 0
}

Buffer.prototype.inspect = function inspect () {
  var str = ''
  var max = exports.INSPECT_MAX_BYTES
  str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()
  if (this.length > max) str += ' ... '
  return '<Buffer ' + str + '>'
}

Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
  if (isInstance(target, Uint8Array)) {
    target = Buffer.from(target, target.offset, target.byteLength)
  }
  if (!Buffer.isBuffer(target)) {
    throw new TypeError(
      'The "target" argument must be one of type Buffer or Uint8Array. ' +
      'Received type ' + (typeof target)
    )
  }

  if (start === undefined) {
    start = 0
  }
  if (end === undefined) {
    end = target ? target.length : 0
  }
  if (thisStart === undefined) {
    thisStart = 0
  }
  if (thisEnd === undefined) {
    thisEnd = this.length
  }

  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
    throw new RangeError('out of range index')
  }

  if (thisStart >= thisEnd && start >= end) {
    return 0
  }
  if (thisStart >= thisEnd) {
    return -1
  }
  if (start >= end) {
    return 1
  }

  start >>>= 0
  end >>>= 0
  thisStart >>>= 0
  thisEnd >>>= 0

  if (this === target) return 0

  var x = thisEnd - thisStart
  var y = end - start
  var len = Math.min(x, y)

  var thisCopy = this.slice(thisStart, thisEnd)
  var targetCopy = target.slice(start, end)

  for (var i = 0; i < len; ++i) {
    if (thisCopy[i] !== targetCopy[i]) {
      x = thisCopy[i]
      y = targetCopy[i]
      break
    }
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
//
// Arguments:
// - buffer - a Buffer to search
// - val - a string, Buffer, or number
// - byteOffset - an index into `buffer`; will be clamped to an int32
// - encoding - an optional encoding, relevant is val is a string
// - dir - true for indexOf, false for lastIndexOf
function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
  // Empty buffer means no match
  if (buffer.length === 0) return -1

  // Normalize byteOffset
  if (typeof byteOffset === 'string') {
    encoding = byteOffset
    byteOffset = 0
  } else if (byteOffset > 0x7fffffff) {
    byteOffset = 0x7fffffff
  } else if (byteOffset < -0x80000000) {
    byteOffset = -0x80000000
  }
  byteOffset = +byteOffset // Coerce to Number.
  if (numberIsNaN(byteOffset)) {
    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
    byteOffset = dir ? 0 : (buffer.length - 1)
  }

  // Normalize byteOffset: negative offsets start from the end of the buffer
  if (byteOffset < 0) byteOffset = buffer.length + byteOffset
  if (byteOffset >= buffer.length) {
    if (dir) return -1
    else byteOffset = buffer.length - 1
  } else if (byteOffset < 0) {
    if (dir) byteOffset = 0
    else return -1
  }

  // Normalize val
  if (typeof val === 'string') {
    val = Buffer.from(val, encoding)
  }

  // Finally, search either indexOf (if dir is true) or lastIndexOf
  if (Buffer.isBuffer(val)) {
    // Special case: looking for empty string/buffer always fails
    if (val.length === 0) {
      return -1
    }
    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
  } else if (typeof val === 'number') {
    val = val & 0xFF // Search for a byte value [0-255]
    if (typeof Uint8Array.prototype.indexOf === 'function') {
      if (dir) {
        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
      } else {
        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
      }
    }
    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
  }

  throw new TypeError('val must be string, number or Buffer')
}

function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
  var indexSize = 1
  var arrLength = arr.length
  var valLength = val.length

  if (encoding !== undefined) {
    encoding = String(encoding).toLowerCase()
    if (encoding === 'ucs2' || encoding === 'ucs-2' ||
        encoding === 'utf16le' || encoding === 'utf-16le') {
      if (arr.length < 2 || val.length < 2) {
        return -1
      }
      indexSize = 2
      arrLength /= 2
      valLength /= 2
      byteOffset /= 2
    }
  }

  function read (buf, i) {
    if (indexSize === 1) {
      return buf[i]
    } else {
      return buf.readUInt16BE(i * indexSize)
    }
  }

  var i
  if (dir) {
    var foundIndex = -1
    for (i = byteOffset; i < arrLength; i++) {
      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
        if (foundIndex === -1) foundIndex = i
        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
      } else {
        if (foundIndex !== -1) i -= i - foundIndex
        foundIndex = -1
      }
    }
  } else {
    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
    for (i = byteOffset; i >= 0; i--) {
      var found = true
      for (var j = 0; j < valLength; j++) {
        if (read(arr, i + j) !== read(val, j)) {
          found = false
          break
        }
      }
      if (found) return i
    }
  }

  return -1
}

Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
  return this.indexOf(val, byteOffset, encoding) !== -1
}

Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
}

Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
}

function hexWrite (buf, string, offset, length) {
  offset = Number(offset) || 0
  var remaining = buf.length - offset
  if (!length) {
    length = remaining
  } else {
    length = Number(length)
    if (length > remaining) {
      length = remaining
    }
  }

  var strLen = string.length

  if (length > strLen / 2) {
    length = strLen / 2
  }
  for (var i = 0; i < length; ++i) {
    var parsed = parseInt(string.substr(i * 2, 2), 16)
    if (numberIsNaN(parsed)) return i
    buf[offset + i] = parsed
  }
  return i
}

function utf8Write (buf, string, offset, length) {
  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
}

function asciiWrite (buf, string, offset, length) {
  return blitBuffer(asciiToBytes(string), buf, offset, length)
}

function latin1Write (buf, string, offset, length) {
  return asciiWrite(buf, string, offset, length)
}

function base64Write (buf, string, offset, length) {
  return blitBuffer(base64ToBytes(string), buf, offset, length)
}

function ucs2Write (buf, string, offset, length) {
  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}

Buffer.prototype.write = function write (string, offset, length, encoding) {
  // Buffer#write(string)
  if (offset === undefined) {
    encoding = 'utf8'
    length = this.length
    offset = 0
  // Buffer#write(string, encoding)
  } else if (length === undefined && typeof offset === 'string') {
    encoding = offset
    length = this.length
    offset = 0
  // Buffer#write(string, offset[, length][, encoding])
  } else if (isFinite(offset)) {
    offset = offset >>> 0
    if (isFinite(length)) {
      length = length >>> 0
      if (encoding === undefined) encoding = 'utf8'
    } else {
      encoding = length
      length = undefined
    }
  } else {
    throw new Error(
      'Buffer.write(string, encoding, offset[, length]) is no longer supported'
    )
  }

  var remaining = this.length - offset
  if (length === undefined || length > remaining) length = remaining

  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
    throw new RangeError('Attempt to write outside buffer bounds')
  }

  if (!encoding) encoding = 'utf8'

  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'hex':
        return hexWrite(this, string, offset, length)

      case 'utf8':
      case 'utf-8':
        return utf8Write(this, string, offset, length)

      case 'ascii':
        return asciiWrite(this, string, offset, length)

      case 'latin1':
      case 'binary':
        return latin1Write(this, string, offset, length)

      case 'base64':
        // Warning: maxLength not taken into account in base64Write
        return base64Write(this, string, offset, length)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return ucs2Write(this, string, offset, length)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}

Buffer.prototype.toJSON = function toJSON () {
  return {
    type: 'Buffer',
    data: Array.prototype.slice.call(this._arr || this, 0)
  }
}

function base64Slice (buf, start, end) {
  if (start === 0 && end === buf.length) {
    return base64.fromByteArray(buf)
  } else {
    return base64.fromByteArray(buf.slice(start, end))
  }
}

function utf8Slice (buf, start, end) {
  end = Math.min(buf.length, end)
  var res = []

  var i = start
  while (i < end) {
    var firstByte = buf[i]
    var codePoint = null
    var bytesPerSequence = (firstByte > 0xEF) ? 4
      : (firstByte > 0xDF) ? 3
        : (firstByte > 0xBF) ? 2
          : 1

    if (i + bytesPerSequence <= end) {
      var secondByte, thirdByte, fourthByte, tempCodePoint

      switch (bytesPerSequence) {
        case 1:
          if (firstByte < 0x80) {
            codePoint = firstByte
          }
          break
        case 2:
          secondByte = buf[i + 1]
          if ((secondByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
            if (tempCodePoint > 0x7F) {
              codePoint = tempCodePoint
            }
          }
          break
        case 3:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
              codePoint = tempCodePoint
            }
          }
          break
        case 4:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          fourthByte = buf[i + 3]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
              codePoint = tempCodePoint
            }
          }
      }
    }

    if (codePoint === null) {
      // we did not generate a valid codePoint so insert a
      // replacement char (U+FFFD) and advance only 1 byte
      codePoint = 0xFFFD
      bytesPerSequence = 1
    } else if (codePoint > 0xFFFF) {
      // encode to utf16 (surrogate pair dance)
      codePoint -= 0x10000
      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
      codePoint = 0xDC00 | codePoint & 0x3FF
    }

    res.push(codePoint)
    i += bytesPerSequence
  }

  return decodeCodePointsArray(res)
}

// Based on http://stackoverflow.com/a/22747272/680742, the browser with
// the lowest limit is Chrome, with 0x10000 args.
// We go 1 magnitude less, for safety
var MAX_ARGUMENTS_LENGTH = 0x1000

function decodeCodePointsArray (codePoints) {
  var len = codePoints.length
  if (len <= MAX_ARGUMENTS_LENGTH) {
    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
  }

  // Decode in chunks to avoid "call stack size exceeded".
  var res = ''
  var i = 0
  while (i < len) {
    res += String.fromCharCode.apply(
      String,
      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
    )
  }
  return res
}

function asciiSlice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i] & 0x7F)
  }
  return ret
}

function latin1Slice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i])
  }
  return ret
}

function hexSlice (buf, start, end) {
  var len = buf.length

  if (!start || start < 0) start = 0
  if (!end || end < 0 || end > len) end = len

  var out = ''
  for (var i = start; i < end; ++i) {
    out += toHex(buf[i])
  }
  return out
}

function utf16leSlice (buf, start, end) {
  var bytes = buf.slice(start, end)
  var res = ''
  for (var i = 0; i < bytes.length; i += 2) {
    res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
  }
  return res
}

Buffer.prototype.slice = function slice (start, end) {
  var len = this.length
  start = ~~start
  end = end === undefined ? len : ~~end

  if (start < 0) {
    start += len
    if (start < 0) start = 0
  } else if (start > len) {
    start = len
  }

  if (end < 0) {
    end += len
    if (end < 0) end = 0
  } else if (end > len) {
    end = len
  }

  if (end < start) end = start

  var newBuf = this.subarray(start, end)
  // Return an augmented `Uint8Array` instance
  newBuf.__proto__ = Buffer.prototype
  return newBuf
}

/*
 * Need to make sure that buffer isn't trying to write out of bounds.
 */
function checkOffset (offset, ext, length) {
  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
}

Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }

  return val
}

Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) {
    checkOffset(offset, byteLength, this.length)
  }

  var val = this[offset + --byteLength]
  var mul = 1
  while (byteLength > 0 && (mul *= 0x100)) {
    val += this[offset + --byteLength] * mul
  }

  return val
}

Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 1, this.length)
  return this[offset]
}

Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  return this[offset] | (this[offset + 1] << 8)
}

Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  return (this[offset] << 8) | this[offset + 1]
}

Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return ((this[offset]) |
      (this[offset + 1] << 8) |
      (this[offset + 2] << 16)) +
      (this[offset + 3] * 0x1000000)
}

Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] * 0x1000000) +
    ((this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    this[offset + 3])
}

Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var i = byteLength
  var mul = 1
  var val = this[offset + --i]
  while (i > 0 && (mul *= 0x100)) {
    val += this[offset + --i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 1, this.length)
  if (!(this[offset] & 0x80)) return (this[offset])
  return ((0xff - this[offset] + 1) * -1)
}

Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset] | (this[offset + 1] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset + 1] | (this[offset] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset]) |
    (this[offset + 1] << 8) |
    (this[offset + 2] << 16) |
    (this[offset + 3] << 24)
}

Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] << 24) |
    (this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    (this[offset + 3])
}

Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, true, 23, 4)
}

Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, false, 23, 4)
}

Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, true, 52, 8)
}

Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, false, 52, 8)
}

function checkInt (buf, value, offset, ext, max, min) {
  if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
  if (offset + ext > buf.length) throw new RangeError('Index out of range')
}

Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) {
    var maxBytes = Math.pow(2, 8 * byteLength) - 1
    checkInt(this, value, offset, byteLength, maxBytes, 0)
  }

  var mul = 1
  var i = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) {
    var maxBytes = Math.pow(2, 8 * byteLength) - 1
    checkInt(this, value, offset, byteLength, maxBytes, 0)
  }

  var i = byteLength - 1
  var mul = 1
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
  this[offset] = (value & 0xff)
  return offset + 1
}

Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  this[offset] = (value & 0xff)
  this[offset + 1] = (value >>> 8)
  return offset + 2
}

Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  this[offset] = (value >>> 8)
  this[offset + 1] = (value & 0xff)
  return offset + 2
}

Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  this[offset + 3] = (value >>> 24)
  this[offset + 2] = (value >>> 16)
  this[offset + 1] = (value >>> 8)
  this[offset] = (value & 0xff)
  return offset + 4
}

Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  this[offset] = (value >>> 24)
  this[offset + 1] = (value >>> 16)
  this[offset + 2] = (value >>> 8)
  this[offset + 3] = (value & 0xff)
  return offset + 4
}

Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    var limit = Math.pow(2, (8 * byteLength) - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = 0
  var mul = 1
  var sub = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
      sub = 1
    }
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    var limit = Math.pow(2, (8 * byteLength) - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = byteLength - 1
  var mul = 1
  var sub = 0
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
      sub = 1
    }
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
  if (value < 0) value = 0xff + value + 1
  this[offset] = (value & 0xff)
  return offset + 1
}

Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  this[offset] = (value & 0xff)
  this[offset + 1] = (value >>> 8)
  return offset + 2
}

Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  this[offset] = (value >>> 8)
  this[offset + 1] = (value & 0xff)
  return offset + 2
}

Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  this[offset] = (value & 0xff)
  this[offset + 1] = (value >>> 8)
  this[offset + 2] = (value >>> 16)
  this[offset + 3] = (value >>> 24)
  return offset + 4
}

Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  if (value < 0) value = 0xffffffff + value + 1
  this[offset] = (value >>> 24)
  this[offset + 1] = (value >>> 16)
  this[offset + 2] = (value >>> 8)
  this[offset + 3] = (value & 0xff)
  return offset + 4
}

function checkIEEE754 (buf, value, offset, ext, max, min) {
  if (offset + ext > buf.length) throw new RangeError('Index out of range')
  if (offset < 0) throw new RangeError('Index out of range')
}

function writeFloat (buf, value, offset, littleEndian, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
  }
  ieee754.write(buf, value, offset, littleEndian, 23, 4)
  return offset + 4
}

Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
  return writeFloat(this, value, offset, true, noAssert)
}

Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
  return writeFloat(this, value, offset, false, noAssert)
}

function writeDouble (buf, value, offset, littleEndian, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
  }
  ieee754.write(buf, value, offset, littleEndian, 52, 8)
  return offset + 8
}

Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
  return writeDouble(this, value, offset, true, noAssert)
}

Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
  return writeDouble(this, value, offset, false, noAssert)
}

// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function copy (target, targetStart, start, end) {
  if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer')
  if (!start) start = 0
  if (!end && end !== 0) end = this.length
  if (targetStart >= target.length) targetStart = target.length
  if (!targetStart) targetStart = 0
  if (end > 0 && end < start) end = start

  // Copy 0 bytes; we're done
  if (end === start) return 0
  if (target.length === 0 || this.length === 0) return 0

  // Fatal error conditions
  if (targetStart < 0) {
    throw new RangeError('targetStart out of bounds')
  }
  if (start < 0 || start >= this.length) throw new RangeError('Index out of range')
  if (end < 0) throw new RangeError('sourceEnd out of bounds')

  // Are we oob?
  if (end > this.length) end = this.length
  if (target.length - targetStart < end - start) {
    end = target.length - targetStart + start
  }

  var len = end - start

  if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') {
    // Use built-in when available, missing from IE11
    this.copyWithin(targetStart, start, end)
  } else if (this === target && start < targetStart && targetStart < end) {
    // descending copy from end
    for (var i = len - 1; i >= 0; --i) {
      target[i + targetStart] = this[i + start]
    }
  } else {
    Uint8Array.prototype.set.call(
      target,
      this.subarray(start, end),
      targetStart
    )
  }

  return len
}

// Usage:
//    buffer.fill(number[, offset[, end]])
//    buffer.fill(buffer[, offset[, end]])
//    buffer.fill(string[, offset[, end]][, encoding])
Buffer.prototype.fill = function fill (val, start, end, encoding) {
  // Handle string cases:
  if (typeof val === 'string') {
    if (typeof start === 'string') {
      encoding = start
      start = 0
      end = this.length
    } else if (typeof end === 'string') {
      encoding = end
      end = this.length
    }
    if (encoding !== undefined && typeof encoding !== 'string') {
      throw new TypeError('encoding must be a string')
    }
    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
      throw new TypeError('Unknown encoding: ' + encoding)
    }
    if (val.length === 1) {
      var code = val.charCodeAt(0)
      if ((encoding === 'utf8' && code < 128) ||
          encoding === 'latin1') {
        // Fast path: If `val` fits into a single byte, use that numeric value.
        val = code
      }
    }
  } else if (typeof val === 'number') {
    val = val & 255
  }

  // Invalid ranges are not set to a default, so can range check early.
  if (start < 0 || this.length < start || this.length < end) {
    throw new RangeError('Out of range index')
  }

  if (end <= start) {
    return this
  }

  start = start >>> 0
  end = end === undefined ? this.length : end >>> 0

  if (!val) val = 0

  var i
  if (typeof val === 'number') {
    for (i = start; i < end; ++i) {
      this[i] = val
    }
  } else {
    var bytes = Buffer.isBuffer(val)
      ? val
      : Buffer.from(val, encoding)
    var len = bytes.length
    if (len === 0) {
      throw new TypeError('The value "' + val +
        '" is invalid for argument "value"')
    }
    for (i = 0; i < end - start; ++i) {
      this[i + start] = bytes[i % len]
    }
  }

  return this
}

// HELPER FUNCTIONS
// ================

var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g

function base64clean (str) {
  // Node takes equal signs as end of the Base64 encoding
  str = str.split('=')[0]
  // Node strips out invalid characters like \n and \t from the string, base64-js does not
  str = str.trim().replace(INVALID_BASE64_RE, '')
  // Node converts strings with length < 2 to ''
  if (str.length < 2) return ''
  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
  while (str.length % 4 !== 0) {
    str = str + '='
  }
  return str
}

function toHex (n) {
  if (n < 16) return '0' + n.toString(16)
  return n.toString(16)
}

function utf8ToBytes (string, units) {
  units = units || Infinity
  var codePoint
  var length = string.length
  var leadSurrogate = null
  var bytes = []

  for (var i = 0; i < length; ++i) {
    codePoint = string.charCodeAt(i)

    // is surrogate component
    if (codePoint > 0xD7FF && codePoint < 0xE000) {
      // last char was a lead
      if (!leadSurrogate) {
        // no lead yet
        if (codePoint > 0xDBFF) {
          // unexpected trail
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        } else if (i + 1 === length) {
          // unpaired lead
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        }

        // valid lead
        leadSurrogate = codePoint

        continue
      }

      // 2 leads in a row
      if (codePoint < 0xDC00) {
        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
        leadSurrogate = codePoint
        continue
      }

      // valid surrogate pair
      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
    } else if (leadSurrogate) {
      // valid bmp char, but last char was a lead
      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
    }

    leadSurrogate = null

    // encode utf8
    if (codePoint < 0x80) {
      if ((units -= 1) < 0) break
      bytes.push(codePoint)
    } else if (codePoint < 0x800) {
      if ((units -= 2) < 0) break
      bytes.push(
        codePoint >> 0x6 | 0xC0,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x10000) {
      if ((units -= 3) < 0) break
      bytes.push(
        codePoint >> 0xC | 0xE0,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x110000) {
      if ((units -= 4) < 0) break
      bytes.push(
        codePoint >> 0x12 | 0xF0,
        codePoint >> 0xC & 0x3F | 0x80,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else {
      throw new Error('Invalid code point')
    }
  }

  return bytes
}

function asciiToBytes (str) {
  var byteArray = []
  for (var i = 0; i < str.length; ++i) {
    // Node's code seems to be doing this and not & 0x7F..
    byteArray.push(str.charCodeAt(i) & 0xFF)
  }
  return byteArray
}

function utf16leToBytes (str, units) {
  var c, hi, lo
  var byteArray = []
  for (var i = 0; i < str.length; ++i) {
    if ((units -= 2) < 0) break

    c = str.charCodeAt(i)
    hi = c >> 8
    lo = c % 256
    byteArray.push(lo)
    byteArray.push(hi)
  }

  return byteArray
}

function base64ToBytes (str) {
  return base64.toByteArray(base64clean(str))
}

function blitBuffer (src, dst, offset, length) {
  for (var i = 0; i < length; ++i) {
    if ((i + offset >= dst.length) || (i >= src.length)) break
    dst[i + offset] = src[i]
  }
  return i
}

// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass
// the `instanceof` check but they should be treated as of that type.
// See: https://github.com/feross/buffer/issues/166
function isInstance (obj, type) {
  return obj instanceof type ||
    (obj != null && obj.constructor != null && obj.constructor.name != null &&
      obj.constructor.name === type.name)
}
function numberIsNaN (obj) {
  // For IE11 support
  return obj !== obj // eslint-disable-line no-self-compare
}

}).call(this)}).call(this,require("buffer").Buffer)

},{"base64-js":8,"buffer":10,"ieee754":46}],11:[function(require,module,exports){
'use strict';

var GetIntrinsic = require('get-intrinsic');

var callBind = require('./');

var $indexOf = callBind(GetIntrinsic('String.prototype.indexOf'));

module.exports = function callBoundIntrinsic(name, allowMissing) {
	var intrinsic = GetIntrinsic(name, !!allowMissing);
	if (typeof intrinsic === 'function' && $indexOf(name, '.prototype.') > -1) {
		return callBind(intrinsic);
	}
	return intrinsic;
};

},{"./":12,"get-intrinsic":39}],12:[function(require,module,exports){
'use strict';

var bind = require('function-bind');
var GetIntrinsic = require('get-intrinsic');

var $apply = GetIntrinsic('%Function.prototype.apply%');
var $call = GetIntrinsic('%Function.prototype.call%');
var $reflectApply = GetIntrinsic('%Reflect.apply%', true) || bind.call($call, $apply);

var $gOPD = GetIntrinsic('%Object.getOwnPropertyDescriptor%', true);
var $defineProperty = GetIntrinsic('%Object.defineProperty%', true);
var $max = GetIntrinsic('%Math.max%');

if ($defineProperty) {
	try {
		$defineProperty({}, 'a', { value: 1 });
	} catch (e) {
		// IE 8 has a broken defineProperty
		$defineProperty = null;
	}
}

module.exports = function callBind(originalFunction) {
	var func = $reflectApply(bind, $call, arguments);
	if ($gOPD && $defineProperty) {
		var desc = $gOPD(func, 'length');
		if (desc.configurable) {
			// original length, plus the receiver, minus any additional arguments (after the receiver)
			$defineProperty(
				func,
				'length',
				{ value: 1 + $max(0, originalFunction.length - (arguments.length - 1)) }
			);
		}
	}
	return func;
};

var applyBind = function applyBind() {
	return $reflectApply(bind, $apply, arguments);
};

if ($defineProperty) {
	$defineProperty(module.exports, 'apply', { value: applyBind });
} else {
	module.exports.apply = applyBind;
}

},{"function-bind":37,"get-intrinsic":39}],13:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.

function isArray(arg) {
  if (Array.isArray) {
    return Array.isArray(arg);
  }
  return objectToString(arg) === '[object Array]';
}
exports.isArray = isArray;

function isBoolean(arg) {
  return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;

function isNull(arg) {
  return arg === null;
}
exports.isNull = isNull;

function isNullOrUndefined(arg) {
  return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;

function isNumber(arg) {
  return typeof arg === 'number';
}
exports.isNumber = isNumber;

function isString(arg) {
  return typeof arg === 'string';
}
exports.isString = isString;

function isSymbol(arg) {
  return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;

function isUndefined(arg) {
  return arg === void 0;
}
exports.isUndefined = isUndefined;

function isRegExp(re) {
  return objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;

function isDate(d) {
  return objectToString(d) === '[object Date]';
}
exports.isDate = isDate;

function isError(e) {
  return (objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;

function isFunction(arg) {
  return typeof arg === 'function';
}
exports.isFunction = isFunction;

function isPrimitive(arg) {
  return arg === null ||
         typeof arg === 'boolean' ||
         typeof arg === 'number' ||
         typeof arg === 'string' ||
         typeof arg === 'symbol' ||  // ES6 symbol
         typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;

exports.isBuffer = require('buffer').Buffer.isBuffer;

function objectToString(o) {
  return Object.prototype.toString.call(o);
}

},{"buffer":10}],14:[function(require,module,exports){
'use strict';

var objectKeys = require('object-keys');
var isArguments = require('is-arguments');
var is = require('object-is');
var isRegex = require('is-regex');
var flags = require('regexp.prototype.flags');
var isArray = require('isarray');
var isDate = require('is-date-object');
var whichBoxedPrimitive = require('which-boxed-primitive');
var GetIntrinsic = require('get-intrinsic');
var callBound = require('call-bind/callBound');
var whichCollection = require('which-collection');
var getIterator = require('es-get-iterator');
var getSideChannel = require('side-channel');
var whichTypedArray = require('which-typed-array');
var assign = require('object.assign');

var $getTime = callBound('Date.prototype.getTime');
var gPO = Object.getPrototypeOf;
var $objToString = callBound('Object.prototype.toString');

var $Set = GetIntrinsic('%Set%', true);
var $mapHas = callBound('Map.prototype.has', true);
var $mapGet = callBound('Map.prototype.get', true);
var $mapSize = callBound('Map.prototype.size', true);
var $setAdd = callBound('Set.prototype.add', true);
var $setDelete = callBound('Set.prototype.delete', true);
var $setHas = callBound('Set.prototype.has', true);
var $setSize = callBound('Set.prototype.size', true);

// taken from https://github.com/browserify/commonjs-assert/blob/bba838e9ba9e28edf3127ce6974624208502f6bc/internal/util/comparisons.js#L401-L414
function setHasEqualElement(set, val1, opts, channel) {
  var i = getIterator(set);
  var result;
  while ((result = i.next()) && !result.done) {
    if (internalDeepEqual(val1, result.value, opts, channel)) { // eslint-disable-line no-use-before-define
      // Remove the matching element to make sure we do not check that again.
      $setDelete(set, result.value);
      return true;
    }
  }

  return false;
}

// taken from https://github.com/browserify/commonjs-assert/blob/bba838e9ba9e28edf3127ce6974624208502f6bc/internal/util/comparisons.js#L416-L439
function findLooseMatchingPrimitives(prim) {
  if (typeof prim === 'undefined') {
    return null;
  }
  if (typeof prim === 'object') { // Only pass in null as object!
    return void 0;
  }
  if (typeof prim === 'symbol') {
    return false;
  }
  if (typeof prim === 'string' || typeof prim === 'number') {
    // Loose equal entries exist only if the string is possible to convert to a regular number and not NaN.
    return +prim === +prim; // eslint-disable-line no-implicit-coercion
  }
  return true;
}

// taken from https://github.com/browserify/commonjs-assert/blob/bba838e9ba9e28edf3127ce6974624208502f6bc/internal/util/comparisons.js#L449-L460
function mapMightHaveLoosePrim(a, b, prim, item, opts, channel) {
  var altValue = findLooseMatchingPrimitives(prim);
  if (altValue != null) {
    return altValue;
  }
  var curB = $mapGet(b, altValue);
  var looseOpts = assign({}, opts, { strict: false });
  if (
    (typeof curB === 'undefined' && !$mapHas(b, altValue))
    // eslint-disable-next-line no-use-before-define
    || !internalDeepEqual(item, curB, looseOpts, channel)
  ) {
    return false;
  }
  // eslint-disable-next-line no-use-before-define
  return !$mapHas(a, altValue) && internalDeepEqual(item, curB, looseOpts, channel);
}

// taken from https://github.com/browserify/commonjs-assert/blob/bba838e9ba9e28edf3127ce6974624208502f6bc/internal/util/comparisons.js#L441-L447
function setMightHaveLoosePrim(a, b, prim) {
  var altValue = findLooseMatchingPrimitives(prim);
  if (altValue != null) {
    return altValue;
  }

  return $setHas(b, altValue) && !$setHas(a, altValue);
}

// taken from https://github.com/browserify/commonjs-assert/blob/bba838e9ba9e28edf3127ce6974624208502f6bc/internal/util/comparisons.js#L518-L533
function mapHasEqualEntry(set, map, key1, item1, opts, channel) {
  var i = getIterator(set);
  var result;
  var key2;
  while ((result = i.next()) && !result.done) {
    key2 = result.value;
    if (
      // eslint-disable-next-line no-use-before-define
      internalDeepEqual(key1, key2, opts, channel)
      // eslint-disable-next-line no-use-before-define
      && internalDeepEqual(item1, $mapGet(map, key2), opts, channel)
    ) {
      $setDelete(set, key2);
      return true;
    }
  }

  return false;
}

function internalDeepEqual(actual, expected, options, channel) {
  var opts = options || {};

  // 7.1. All identical values are equivalent, as determined by ===.
  if (opts.strict ? is(actual, expected) : actual === expected) {
    return true;
  }

  var actualBoxed = whichBoxedPrimitive(actual);
  var expectedBoxed = whichBoxedPrimitive(expected);
  if (actualBoxed !== expectedBoxed) {
    return false;
  }

  // 7.3. Other pairs that do not both pass typeof value == 'object', equivalence is determined by ==.
  if (!actual || !expected || (typeof actual !== 'object' && typeof expected !== 'object')) {
    return opts.strict ? is(actual, expected) : actual == expected; // eslint-disable-line eqeqeq
  }

  /*
   * 7.4. For all other Object pairs, including Array objects, equivalence is
   * determined by having the same number of owned properties (as verified
   * with Object.prototype.hasOwnProperty.call), the same set of keys
   * (although not necessarily the same order), equivalent values for every
   * corresponding key, and an identical 'prototype' property. Note: this
   * accounts for both named and indexed properties on Arrays.
   */
  // see https://github.com/nodejs/node/commit/d3aafd02efd3a403d646a3044adcf14e63a88d32 for memos/channel inspiration

  var hasActual = channel.has(actual);
  var hasExpected = channel.has(expected);
  var sentinel;
  if (hasActual && hasExpected) {
    if (channel.get(actual) === channel.get(expected)) {
      return true;
    }
  } else {
    sentinel = {};
  }
  if (!hasActual) { channel.set(actual, sentinel); }
  if (!hasExpected) { channel.set(expected, sentinel); }

  // eslint-disable-next-line no-use-before-define
  return objEquiv(actual, expected, opts, channel);
}

function isBuffer(x) {
  if (!x || typeof x !== 'object' || typeof x.length !== 'number') {
    return false;
  }
  if (typeof x.copy !== 'function' || typeof x.slice !== 'function') {
    return false;
  }
  if (x.length > 0 && typeof x[0] !== 'number') {
    return false;
  }

  return !!(x.constructor && x.constructor.isBuffer && x.constructor.isBuffer(x));
}

function setEquiv(a, b, opts, channel) {
  if ($setSize(a) !== $setSize(b)) {
    return false;
  }
  var iA = getIterator(a);
  var iB = getIterator(b);
  var resultA;
  var resultB;
  var set;
  while ((resultA = iA.next()) && !resultA.done) {
    if (resultA.value && typeof resultA.value === 'object') {
      if (!set) { set = new $Set(); }
      $setAdd(set, resultA.value);
    } else if (!$setHas(b, resultA.value)) {
      if (opts.strict) { return false; }
      if (!setMightHaveLoosePrim(a, b, resultA.value)) {
        return false;
      }
      if (!set) { set = new $Set(); }
      $setAdd(set, resultA.value);
    }
  }
  if (set) {
    while ((resultB = iB.next()) && !resultB.done) {
      // We have to check if a primitive value is already matching and only if it's not, go hunting for it.
      if (resultB.value && typeof resultB.value === 'object') {
        if (!setHasEqualElement(set, resultB.value, opts.strict, channel)) {
          return false;
        }
      } else if (
        !opts.strict
        && !$setHas(a, resultB.value)
        && !setHasEqualElement(set, resultB.value, opts.strict, channel)
      ) {
        return false;
      }
    }
    return $setSize(set) === 0;
  }
  return true;
}

function mapEquiv(a, b, opts, channel) {
  if ($mapSize(a) !== $mapSize(b)) {
    return false;
  }
  var iA = getIterator(a);
  var iB = getIterator(b);
  var resultA;
  var resultB;
  var set;
  var key;
  var item1;
  var item2;
  while ((resultA = iA.next()) && !resultA.done) {
    key = resultA.value[0];
    item1 = resultA.value[1];
    if (key && typeof key === 'object') {
      if (!set) { set = new $Set(); }
      $setAdd(set, key);
    } else {
      item2 = $mapGet(b, key);
      if ((typeof item2 === 'undefined' && !$mapHas(b, key)) || !internalDeepEqual(item1, item2, opts, channel)) {
        if (opts.strict) {
          return false;
        }
        if (!mapMightHaveLoosePrim(a, b, key, item1, opts, channel)) {
          return false;
        }
        if (!set) { set = new $Set(); }
        $setAdd(set, key);
      }
    }
  }

  if (set) {
    while ((resultB = iB.next()) && !resultB.done) {
      key = resultB.value[0];
      item2 = resultB.value[1];
      if (key && typeof key === 'object') {
        if (!mapHasEqualEntry(set, a, key, item2, opts, channel)) {
          return false;
        }
      } else if (
        !opts.strict
        && (!a.has(key) || !internalDeepEqual($mapGet(a, key), item2, opts, channel))
        && !mapHasEqualEntry(set, a, key, item2, assign({}, opts, { strict: false }), channel)
      ) {
        return false;
      }
    }
    return $setSize(set) === 0;
  }
  return true;
}

function objEquiv(a, b, opts, channel) {
  /* eslint max-statements: [2, 100], max-lines-per-function: [2, 120], max-depth: [2, 5] */
  var i, key;

  if (typeof a !== typeof b) { return false; }
  if (a == null || b == null) { return false; }

  if ($objToString(a) !== $objToString(b)) { return false; }

  if (isArguments(a) !== isArguments(b)) { return false; }

  var aIsArray = isArray(a);
  var bIsArray = isArray(b);
  if (aIsArray !== bIsArray) { return false; }

  // TODO: replace when a cross-realm brand check is available
  var aIsError = a instanceof Error;
  var bIsError = b instanceof Error;
  if (aIsError !== bIsError) { return false; }
  if (aIsError || bIsError) {
    if (a.name !== b.name || a.message !== b.message) { return false; }
  }

  var aIsRegex = isRegex(a);
  var bIsRegex = isRegex(b);
  if (aIsRegex !== bIsRegex) { return false; }
  if ((aIsRegex || bIsRegex) && (a.source !== b.source || flags(a) !== flags(b))) {
    return false;
  }

  var aIsDate = isDate(a);
  var bIsDate = isDate(b);
  if (aIsDate !== bIsDate) { return false; }
  if (aIsDate || bIsDate) { // && would work too, because both are true or both false here
    if ($getTime(a) !== $getTime(b)) { return false; }
  }
  if (opts.strict && gPO && gPO(a) !== gPO(b)) { return false; }

  if (whichTypedArray(a) !== whichTypedArray(b)) {
    return false;
  }

  var aIsBuffer = isBuffer(a);
  var bIsBuffer = isBuffer(b);
  if (aIsBuffer !== bIsBuffer) { return false; }
  if (aIsBuffer || bIsBuffer) { // && would work too, because both are true or both false here
    if (a.length !== b.length) { return false; }
    for (i = 0; i < a.length; i++) {
      if (a[i] !== b[i]) { return false; }
    }
    return true;
  }

  if (typeof a !== typeof b) { return false; }

  var ka = objectKeys(a);
  var kb = objectKeys(b);
  // having the same number of owned properties (keys incorporates hasOwnProperty)
  if (ka.length !== kb.length) { return false; }

  // the same set of keys (although not necessarily the same order),
  ka.sort();
  kb.sort();
  // ~~~cheap key test
  for (i = ka.length - 1; i >= 0; i--) {
    if (ka[i] != kb[i]) { return false; } // eslint-disable-line eqeqeq
  }

  // equivalent values for every corresponding key, and ~~~possibly expensive deep test
  for (i = ka.length - 1; i >= 0; i--) {
    key = ka[i];
    if (!internalDeepEqual(a[key], b[key], opts, channel)) { return false; }
  }

  var aCollection = whichCollection(a);
  var bCollection = whichCollection(b);
  if (aCollection !== bCollection) {
    return false;
  }
  if (aCollection === 'Set' || bCollection === 'Set') { // aCollection === bCollection
    return setEquiv(a, b, opts, channel);
  }
  if (aCollection === 'Map') { // aCollection === bCollection
    return mapEquiv(a, b, opts, channel);
  }

  return true;
}

module.exports = function deepEqual(a, b, opts) {
  return internalDeepEqual(a, b, opts, getSideChannel());
};

},{"call-bind/callBound":11,"es-get-iterator":29,"get-intrinsic":39,"is-arguments":48,"is-date-object":52,"is-regex":55,"isarray":15,"object-is":67,"object-keys":71,"object.assign":74,"regexp.prototype.flags":96,"side-channel":100,"which-boxed-primitive":113,"which-collection":114,"which-typed-array":115}],15:[function(require,module,exports){
var toString = {}.toString;

module.exports = Array.isArray || function (arr) {
  return toString.call(arr) == '[object Array]';
};

},{}],16:[function(require,module,exports){
'use strict';

var keys = require('object-keys');
var hasSymbols = typeof Symbol === 'function' && typeof Symbol('foo') === 'symbol';

var toStr = Object.prototype.toString;
var concat = Array.prototype.concat;
var origDefineProperty = Object.defineProperty;

var isFunction = function (fn) {
	return typeof fn === 'function' && toStr.call(fn) === '[object Function]';
};

var hasPropertyDescriptors = require('has-property-descriptors')();

var supportsDescriptors = origDefineProperty && hasPropertyDescriptors;

var defineProperty = function (object, name, value, predicate) {
	if (name in object && (!isFunction(predicate) || !predicate())) {
		return;
	}
	if (supportsDescriptors) {
		origDefineProperty(object, name, {
			configurable: true,
			enumerable: false,
			value: value,
			writable: true
		});
	} else {
		object[name] = value; // eslint-disable-line no-param-reassign
	}
};

var defineProperties = function (object, map) {
	var predicates = arguments.length > 2 ? arguments[2] : {};
	var props = keys(map);
	if (hasSymbols) {
		props = concat.call(props, Object.getOwnPropertySymbols(map));
	}
	for (var i = 0; i < props.length; i += 1) {
		defineProperty(object, props[i], map[props[i]], predicates[props[i]]);
	}
};

defineProperties.supportsDescriptors = !!supportsDescriptors;

module.exports = defineProperties;

},{"has-property-descriptors":41,"object-keys":71}],17:[function(require,module,exports){
module.exports = function () {
    for (var i = 0; i < arguments.length; i++) {
        if (arguments[i] !== undefined) return arguments[i];
    }
};

},{}],18:[function(require,module,exports){
'use strict';

// http://262.ecma-international.org/5.1/#sec-9.11

module.exports = require('is-callable');

},{"is-callable":51}],19:[function(require,module,exports){
'use strict';

module.exports = require('../5/CheckObjectCoercible');

},{"../5/CheckObjectCoercible":25}],20:[function(require,module,exports){
'use strict';

var GetIntrinsic = require('get-intrinsic');

var $TypeError = GetIntrinsic('%TypeError%');
var $Number = GetIntrinsic('%Number%');
var $RegExp = GetIntrinsic('%RegExp%');
var $parseInteger = GetIntrinsic('%parseInt%');

var callBound = require('call-bind/callBound');
var regexTester = require('../helpers/regexTester');
var isPrimitive = require('../helpers/isPrimitive');

var $strSlice = callBound('String.prototype.slice');
var isBinary = regexTester(/^0b[01]+$/i);
var isOctal = regexTester(/^0o[0-7]+$/i);
var isInvalidHexLiteral = regexTester(/^[-+]0x[0-9a-f]+$/i);
var nonWS = ['\u0085', '\u200b', '\ufffe'].join('');
var nonWSregex = new $RegExp('[' + nonWS + ']', 'g');
var hasNonWS = regexTester(nonWSregex);

// whitespace from: https://es5.github.io/#x15.5.4.20
// implementation from https://github.com/es-shims/es5-shim/blob/v3.4.0/es5-shim.js#L1304-L1324
var ws = [
	'\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003',
	'\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028',
	'\u2029\uFEFF'
].join('');
var trimRegex = new RegExp('(^[' + ws + ']+)|([' + ws + ']+$)', 'g');
var $replace = callBound('String.prototype.replace');
var $trim = function (value) {
	return $replace(value, trimRegex, '');
};

var ToPrimitive = require('./ToPrimitive');

// https://ecma-international.org/ecma-262/6.0/#sec-tonumber

module.exports = function ToNumber(argument) {
	var value = isPrimitive(argument) ? argument : ToPrimitive(argument, $Number);
	if (typeof value === 'symbol') {
		throw new $TypeError('Cannot convert a Symbol value to a number');
	}
	if (typeof value === 'bigint') {
		throw new $TypeError('Conversion from \'BigInt\' to \'number\' is not allowed.');
	}
	if (typeof value === 'string') {
		if (isBinary(value)) {
			return ToNumber($parseInteger($strSlice(value, 2), 2));
		} else if (isOctal(value)) {
			return ToNumber($parseInteger($strSlice(value, 2), 8));
		} else if (hasNonWS(value) || isInvalidHexLiteral(value)) {
			return NaN;
		}
		var trimmed = $trim(value);
		if (trimmed !== value) {
			return ToNumber(trimmed);
		}

	}
	return $Number(value);
};

},{"../helpers/isPrimitive":27,"../helpers/regexTester":28,"./ToPrimitive":22,"call-bind/callBound":11,"get-intrinsic":39}],21:[function(require,module,exports){
'use strict';

var GetIntrinsic = require('get-intrinsic');

var $Object = GetIntrinsic('%Object%');

var RequireObjectCoercible = require('./RequireObjectCoercible');

// https://ecma-international.org/ecma-262/6.0/#sec-toobject

module.exports = function ToObject(value) {
	RequireObjectCoercible(value);
	return $Object(value);
};

},{"./RequireObjectCoercible":19,"get-intrinsic":39}],22:[function(require,module,exports){
'use strict';

var toPrimitive = require('es-to-primitive/es2015');

// https://ecma-international.org/ecma-262/6.0/#sec-toprimitive

module.exports = function ToPrimitive(input) {
	if (arguments.length > 1) {
		return toPrimitive(input, arguments[1]);
	}
	return toPrimitive(input);
};

},{"es-to-primitive/es2015":31}],23:[function(require,module,exports){
'use strict';

var GetIntrinsic = require('get-intrinsic');

var $String = GetIntrinsic('%String%');
var $TypeError = GetIntrinsic('%TypeError%');

// https://ecma-international.org/ecma-262/6.0/#sec-tostring

module.exports = function ToString(argument) {
	if (typeof argument === 'symbol') {
		throw new $TypeError('Cannot convert a Symbol value to a string');
	}
	return $String(argument);
};

},{"get-intrinsic":39}],24:[function(require,module,exports){
'use strict';

var ToNumber = require('./ToNumber');

// http://262.ecma-international.org/5.1/#sec-9.6

module.exports = function ToUint32(x) {
	return ToNumber(x) >>> 0;
};

},{"./ToNumber":20}],25:[function(require,module,exports){
'use strict';

var GetIntrinsic = require('get-intrinsic');

var $TypeError = GetIntrinsic('%TypeError%');

// http://262.ecma-international.org/5.1/#sec-9.10

module.exports = function CheckObjectCoercible(value, optMessage) {
	if (value == null) {
		throw new $TypeError(optMessage || ('Cannot call method on ' + value));
	}
	return value;
};

},{"get-intrinsic":39}],26:[function(require,module,exports){
'use strict';

var GetIntrinsic = require('get-intrinsic');

var $gOPD = GetIntrinsic('%Object.getOwnPropertyDescriptor%', true);
if ($gOPD) {
	try {
		$gOPD([], 'length');
	} catch (e) {
		// IE 8 has a broken gOPD
		$gOPD = null;
	}
}

module.exports = $gOPD;

},{"get-intrinsic":39}],27:[function(require,module,exports){
'use strict';

module.exports = function isPrimitive(value) {
	return value === null || (typeof value !== 'function' && typeof value !== 'object');
};

},{}],28:[function(require,module,exports){
'use strict';

var GetIntrinsic = require('get-intrinsic');

var $test = GetIntrinsic('RegExp.prototype.test');

var callBind = require('call-bind');

module.exports = function regexTester(regex) {
	return callBind($test, regex);
};

},{"call-bind":12,"get-intrinsic":39}],29:[function(require,module,exports){
(function (process){(function (){
'use strict';

/* eslint global-require: 0 */
// the code is structured this way so that bundlers can
// alias out `has-symbols` to `() => true` or `() => false` if your target
// environments' Symbol capabilities are known, and then use
// dead code elimination on the rest of this module.
//
// Similarly, `isarray` can be aliased to `Array.isArray` if
// available in all target environments.

var isArguments = require('is-arguments');

if (require('has-symbols')() || require('has-symbols/shams')()) {
	var $iterator = Symbol.iterator;
	// Symbol is available natively or shammed
	// natively:
	//  - Chrome >= 38
	//  - Edge 12-14?, Edge >= 15 for sure
	//  - FF >= 36
	//  - Safari >= 9
	//  - node >= 0.12
	module.exports = function getIterator(iterable) {
		// alternatively, `iterable[$iterator]?.()`
		if (iterable != null && typeof iterable[$iterator] !== 'undefined') {
			return iterable[$iterator]();
		}
		if (isArguments(iterable)) {
			// arguments objects lack Symbol.iterator
			// - node 0.12
			return Array.prototype[$iterator].call(iterable);
		}
	};
} else {
	// Symbol is not available, native or shammed
	var isArray = require('isarray');
	var isString = require('is-string');
	var GetIntrinsic = require('get-intrinsic');
	var $Map = GetIntrinsic('%Map%', true);
	var $Set = GetIntrinsic('%Set%', true);
	var callBound = require('call-bind/callBound');
	var $arrayPush = callBound('Array.prototype.push');
	var $charCodeAt = callBound('String.prototype.charCodeAt');
	var $stringSlice = callBound('String.prototype.slice');

	var advanceStringIndex = function advanceStringIndex(S, index) {
		var length = S.length;
		if ((index + 1) >= length) {
			return index + 1;
		}

		var first = $charCodeAt(S, index);
		if (first < 0xD800 || first > 0xDBFF) {
			return index + 1;
		}

		var second = $charCodeAt(S, index + 1);
		if (second < 0xDC00 || second > 0xDFFF) {
			return index + 1;
		}

		return index + 2;
	};

	var getArrayIterator = function getArrayIterator(arraylike) {
		var i = 0;
		return {
			next: function next() {
				var done = i >= arraylike.length;
				var value;
				if (!done) {
					value = arraylike[i];
					i += 1;
				}
				return {
					done: done,
					value: value
				};
			}
		};
	};

	var getNonCollectionIterator = function getNonCollectionIterator(iterable, noPrimordialCollections) {
		if (isArray(iterable) || isArguments(iterable)) {
			return getArrayIterator(iterable);
		}
		if (isString(iterable)) {
			var i = 0;
			return {
				next: function next() {
					var nextIndex = advanceStringIndex(iterable, i);
					var value = $stringSlice(iterable, i, nextIndex);
					i = nextIndex;
					return {
						done: nextIndex > iterable.length,
						value: value
					};
				}
			};
		}

		// es6-shim and es-shims' es-map use a string "_es6-shim iterator_" property on different iterables, such as MapIterator.
		if (noPrimordialCollections && typeof iterable['_es6-shim iterator_'] !== 'undefined') {
			return iterable['_es6-shim iterator_']();
		}
	};

	if (!$Map && !$Set) {
		// the only language iterables are Array, String, arguments
		// - Safari <= 6.0
		// - Chrome < 38
		// - node < 0.12
		// - FF < 13
		// - IE < 11
		// - Edge < 11

		module.exports = function getIterator(iterable) {
			if (iterable != null) {
				return getNonCollectionIterator(iterable, true);
			}
		};
	} else {
		// either Map or Set are available, but Symbol is not
		// - es6-shim on an ES5 browser
		// - Safari 6.2 (maybe 6.1?)
		// - FF v[13, 36)
		// - IE 11
		// - Edge 11
		// - Safari v[6, 9)

		var isMap = require('is-map');
		var isSet = require('is-set');

		// Firefox >= 27, IE 11, Safari 6.2 - 9, Edge 11, es6-shim in older envs, all have forEach
		var $mapForEach = callBound('Map.prototype.forEach', true);
		var $setForEach = callBound('Set.prototype.forEach', true);
		if (typeof process === 'undefined' || !process.versions || !process.versions.node) { // "if is not node"

			// Firefox 17 - 26 has `.iterator()`, whose iterator `.next()` either
			// returns a value, or throws a StopIteration object. These browsers
			// do not have any other mechanism for iteration.
			var $mapIterator = callBound('Map.prototype.iterator', true);
			var $setIterator = callBound('Set.prototype.iterator', true);
			var getStopIterationIterator = function (iterator) {
				var done = false;
				return {
					next: function next() {
						try {
							return {
								done: done,
								value: done ? undefined : iterator.next()
							};
						} catch (e) {
							done = true;
							return {
								done: true,
								value: undefined
							};
						}
					}
				};
			};
		}
		// Firefox 27-35, and some older es6-shim versions, use a string "@@iterator" property
		// this returns a proper iterator object, so we should use it instead of forEach.
		// newer es6-shim versions use a string "_es6-shim iterator_" property.
		var $mapAtAtIterator = callBound('Map.prototype.@@iterator', true) || callBound('Map.prototype._es6-shim iterator_', true);
		var $setAtAtIterator = callBound('Set.prototype.@@iterator', true) || callBound('Set.prototype._es6-shim iterator_', true);

		var getCollectionIterator = function getCollectionIterator(iterable) {
			if (isMap(iterable)) {
				if ($mapIterator) {
					return getStopIterationIterator($mapIterator(iterable));
				}
				if ($mapAtAtIterator) {
					return $mapAtAtIterator(iterable);
				}
				if ($mapForEach) {
					var entries = [];
					$mapForEach(iterable, function (v, k) {
						$arrayPush(entries, [k, v]);
					});
					return getArrayIterator(entries);
				}
			}
			if (isSet(iterable)) {
				if ($setIterator) {
					return getStopIterationIterator($setIterator(iterable));
				}
				if ($setAtAtIterator) {
					return $setAtAtIterator(iterable);
				}
				if ($setForEach) {
					var values = [];
					$setForEach(iterable, function (v) {
						$arrayPush(values, v);
					});
					return getArrayIterator(values);
				}
			}
		};

		module.exports = function getIterator(iterable) {
			return getCollectionIterator(iterable) || getNonCollectionIterator(iterable);
		};
	}
}

}).call(this)}).call(this,require('_process'))

},{"_process":79,"call-bind/callBound":11,"get-intrinsic":39,"has-symbols":42,"has-symbols/shams":43,"is-arguments":48,"is-map":53,"is-set":56,"is-string":57,"isarray":30}],30:[function(require,module,exports){
arguments[4][15][0].apply(exports,arguments)
},{"dup":15}],31:[function(require,module,exports){
'use strict';

var hasSymbols = typeof Symbol === 'function' && typeof Symbol.iterator === 'symbol';

var isPrimitive = require('./helpers/isPrimitive');
var isCallable = require('is-callable');
var isDate = require('is-date-object');
var isSymbol = require('is-symbol');

var ordinaryToPrimitive = function OrdinaryToPrimitive(O, hint) {
	if (typeof O === 'undefined' || O === null) {
		throw new TypeError('Cannot call method on ' + O);
	}
	if (typeof hint !== 'string' || (hint !== 'number' && hint !== 'string')) {
		throw new TypeError('hint must be "string" or "number"');
	}
	var methodNames = hint === 'string' ? ['toString', 'valueOf'] : ['valueOf', 'toString'];
	var method, result, i;
	for (i = 0; i < methodNames.length; ++i) {
		method = O[methodNames[i]];
		if (isCallable(method)) {
			result = method.call(O);
			if (isPrimitive(result)) {
				return result;
			}
		}
	}
	throw new TypeError('No default value');
};

var GetMethod = function GetMethod(O, P) {
	var func = O[P];
	if (func !== null && typeof func !== 'undefined') {
		if (!isCallable(func)) {
			throw new TypeError(func + ' returned for property ' + P + ' of object ' + O + ' is not a function');
		}
		return func;
	}
	return void 0;
};

// http://www.ecma-international.org/ecma-262/6.0/#sec-toprimitive
module.exports = function ToPrimitive(input) {
	if (isPrimitive(input)) {
		return input;
	}
	var hint = 'default';
	if (arguments.length > 1) {
		if (arguments[1] === String) {
			hint = 'string';
		} else if (arguments[1] === Number) {
			hint = 'number';
		}
	}

	var exoticToPrim;
	if (hasSymbols) {
		if (Symbol.toPrimitive) {
			exoticToPrim = GetMethod(input, Symbol.toPrimitive);
		} else if (isSymbol(input)) {
			exoticToPrim = Symbol.prototype.valueOf;
		}
	}
	if (typeof exoticToPrim !== 'undefined') {
		var result = exoticToPrim.call(input, hint);
		if (isPrimitive(result)) {
			return result;
		}
		throw new TypeError('unable to convert exotic object to primitive');
	}
	if (hint === 'default' && (isDate(input) || isSymbol(input))) {
		hint = 'string';
	}
	return ordinaryToPrimitive(input, hint === 'default' ? 'number' : hint);
};

},{"./helpers/isPrimitive":32,"is-callable":51,"is-date-object":52,"is-symbol":58}],32:[function(require,module,exports){
arguments[4][27][0].apply(exports,arguments)
},{"dup":27}],33:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var objectCreate = Object.create || objectCreatePolyfill
var objectKeys = Object.keys || objectKeysPolyfill
var bind = Function.prototype.bind || functionBindPolyfill

function EventEmitter() {
  if (!this._events || !Object.prototype.hasOwnProperty.call(this, '_events')) {
    this._events = objectCreate(null);
    this._eventsCount = 0;
  }

  this._maxListeners = this._maxListeners || undefined;
}
module.exports = EventEmitter;

// Backwards-compat with node 0.10.x
EventEmitter.EventEmitter = EventEmitter;

EventEmitter.prototype._events = undefined;
EventEmitter.prototype._maxListeners = undefined;

// By default EventEmitters will print a warning if more than 10 listeners are
// added to it. This is a useful default which helps finding memory leaks.
var defaultMaxListeners = 10;

var hasDefineProperty;
try {
  var o = {};
  if (Object.defineProperty) Object.defineProperty(o, 'x', { value: 0 });
  hasDefineProperty = o.x === 0;
} catch (err) { hasDefineProperty = false }
if (hasDefineProperty) {
  Object.defineProperty(EventEmitter, 'defaultMaxListeners', {
    enumerable: true,
    get: function() {
      return defaultMaxListeners;
    },
    set: function(arg) {
      // check whether the input is a positive number (whose value is zero or
      // greater and not a NaN).
      if (typeof arg !== 'number' || arg < 0 || arg !== arg)
        throw new TypeError('"defaultMaxListeners" must be a positive number');
      defaultMaxListeners = arg;
    }
  });
} else {
  EventEmitter.defaultMaxListeners = defaultMaxListeners;
}

// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {
  if (typeof n !== 'number' || n < 0 || isNaN(n))
    throw new TypeError('"n" argument must be a positive number');
  this._maxListeners = n;
  return this;
};

function $getMaxListeners(that) {
  if (that._maxListeners === undefined)
    return EventEmitter.defaultMaxListeners;
  return that._maxListeners;
}

EventEmitter.prototype.getMaxListeners = function getMaxListeners() {
  return $getMaxListeners(this);
};

// These standalone emit* functions are used to optimize calling of event
// handlers for fast cases because emit() itself often has a variable number of
// arguments and can be deoptimized because of that. These functions always have
// the same number of arguments and thus do not get deoptimized, so the code
// inside them can execute faster.
function emitNone(handler, isFn, self) {
  if (isFn)
    handler.call(self);
  else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      listeners[i].call(self);
  }
}
function emitOne(handler, isFn, self, arg1) {
  if (isFn)
    handler.call(self, arg1);
  else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      listeners[i].call(self, arg1);
  }
}
function emitTwo(handler, isFn, self, arg1, arg2) {
  if (isFn)
    handler.call(self, arg1, arg2);
  else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      listeners[i].call(self, arg1, arg2);
  }
}
function emitThree(handler, isFn, self, arg1, arg2, arg3) {
  if (isFn)
    handler.call(self, arg1, arg2, arg3);
  else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      listeners[i].call(self, arg1, arg2, arg3);
  }
}

function emitMany(handler, isFn, self, args) {
  if (isFn)
    handler.apply(self, args);
  else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      listeners[i].apply(self, args);
  }
}

EventEmitter.prototype.emit = function emit(type) {
  var er, handler, len, args, i, events;
  var doError = (type === 'error');

  events = this._events;
  if (events)
    doError = (doError && events.error == null);
  else if (!doError)
    return false;

  // If there is no 'error' event listener then throw.
  if (doError) {
    if (arguments.length > 1)
      er = arguments[1];
    if (er instanceof Error) {
      throw er; // Unhandled 'error' event
    } else {
      // At least give some kind of context to the user
      var err = new Error('Unhandled "error" event. (' + er + ')');
      err.context = er;
      throw err;
    }
    return false;
  }

  handler = events[type];

  if (!handler)
    return false;

  var isFn = typeof handler === 'function';
  len = arguments.length;
  switch (len) {
      // fast cases
    case 1:
      emitNone(handler, isFn, this);
      break;
    case 2:
      emitOne(handler, isFn, this, arguments[1]);
      break;
    case 3:
      emitTwo(handler, isFn, this, arguments[1], arguments[2]);
      break;
    case 4:
      emitThree(handler, isFn, this, arguments[1], arguments[2], arguments[3]);
      break;
      // slower
    default:
      args = new Array(len - 1);
      for (i = 1; i < len; i++)
        args[i - 1] = arguments[i];
      emitMany(handler, isFn, this, args);
  }

  return true;
};

function _addListener(target, type, listener, prepend) {
  var m;
  var events;
  var existing;

  if (typeof listener !== 'function')
    throw new TypeError('"listener" argument must be a function');

  events = target._events;
  if (!events) {
    events = target._events = objectCreate(null);
    target._eventsCount = 0;
  } else {
    // To avoid recursion in the case that type === "newListener"! Before
    // adding it to the listeners, first emit "newListener".
    if (events.newListener) {
      target.emit('newListener', type,
          listener.listener ? listener.listener : listener);

      // Re-assign `events` because a newListener handler could have caused the
      // this._events to be assigned to a new object
      events = target._events;
    }
    existing = events[type];
  }

  if (!existing) {
    // Optimize the case of one listener. Don't need the extra array object.
    existing = events[type] = listener;
    ++target._eventsCount;
  } else {
    if (typeof existing === 'function') {
      // Adding the second element, need to change to array.
      existing = events[type] =
          prepend ? [listener, existing] : [existing, listener];
    } else {
      // If we've already got an array, just append.
      if (prepend) {
        existing.unshift(listener);
      } else {
        existing.push(listener);
      }
    }

    // Check for listener leak
    if (!existing.warned) {
      m = $getMaxListeners(target);
      if (m && m > 0 && existing.length > m) {
        existing.warned = true;
        var w = new Error('Possible EventEmitter memory leak detected. ' +
            existing.length + ' "' + String(type) + '" listeners ' +
            'added. Use emitter.setMaxListeners() to ' +
            'increase limit.');
        w.name = 'MaxListenersExceededWarning';
        w.emitter = target;
        w.type = type;
        w.count = existing.length;
        if (typeof console === 'object' && console.warn) {
          console.warn('%s: %s', w.name, w.message);
        }
      }
    }
  }

  return target;
}

EventEmitter.prototype.addListener = function addListener(type, listener) {
  return _addListener(this, type, listener, false);
};

EventEmitter.prototype.on = EventEmitter.prototype.addListener;

EventEmitter.prototype.prependListener =
    function prependListener(type, listener) {
      return _addListener(this, type, listener, true);
    };

function onceWrapper() {
  if (!this.fired) {
    this.target.removeListener(this.type, this.wrapFn);
    this.fired = true;
    switch (arguments.length) {
      case 0:
        return this.listener.call(this.target);
      case 1:
        return this.listener.call(this.target, arguments[0]);
      case 2:
        return this.listener.call(this.target, arguments[0], arguments[1]);
      case 3:
        return this.listener.call(this.target, arguments[0], arguments[1],
            arguments[2]);
      default:
        var args = new Array(arguments.length);
        for (var i = 0; i < args.length; ++i)
          args[i] = arguments[i];
        this.listener.apply(this.target, args);
    }
  }
}

function _onceWrap(target, type, listener) {
  var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };
  var wrapped = bind.call(onceWrapper, state);
  wrapped.listener = listener;
  state.wrapFn = wrapped;
  return wrapped;
}

EventEmitter.prototype.once = function once(type, listener) {
  if (typeof listener !== 'function')
    throw new TypeError('"listener" argument must be a function');
  this.on(type, _onceWrap(this, type, listener));
  return this;
};

EventEmitter.prototype.prependOnceListener =
    function prependOnceListener(type, listener) {
      if (typeof listener !== 'function')
        throw new TypeError('"listener" argument must be a function');
      this.prependListener(type, _onceWrap(this, type, listener));
      return this;
    };

// Emits a 'removeListener' event if and only if the listener was removed.
EventEmitter.prototype.removeListener =
    function removeListener(type, listener) {
      var list, events, position, i, originalListener;

      if (typeof listener !== 'function')
        throw new TypeError('"listener" argument must be a function');

      events = this._events;
      if (!events)
        return this;

      list = events[type];
      if (!list)
        return this;

      if (list === listener || list.listener === listener) {
        if (--this._eventsCount === 0)
          this._events = objectCreate(null);
        else {
          delete events[type];
          if (events.removeListener)
            this.emit('removeListener', type, list.listener || listener);
        }
      } else if (typeof list !== 'function') {
        position = -1;

        for (i = list.length - 1; i >= 0; i--) {
          if (list[i] === listener || list[i].listener === listener) {
            originalListener = list[i].listener;
            position = i;
            break;
          }
        }

        if (position < 0)
          return this;

        if (position === 0)
          list.shift();
        else
          spliceOne(list, position);

        if (list.length === 1)
          events[type] = list[0];

        if (events.removeListener)
          this.emit('removeListener', type, originalListener || listener);
      }

      return this;
    };

EventEmitter.prototype.removeAllListeners =
    function removeAllListeners(type) {
      var listeners, events, i;

      events = this._events;
      if (!events)
        return this;

      // not listening for removeListener, no need to emit
      if (!events.removeListener) {
        if (arguments.length === 0) {
          this._events = objectCreate(null);
          this._eventsCount = 0;
        } else if (events[type]) {
          if (--this._eventsCount === 0)
            this._events = objectCreate(null);
          else
            delete events[type];
        }
        return this;
      }

      // emit removeListener for all listeners on all events
      if (arguments.length === 0) {
        var keys = objectKeys(events);
        var key;
        for (i = 0; i < keys.length; ++i) {
          key = keys[i];
          if (key === 'removeListener') continue;
          this.removeAllListeners(key);
        }
        this.removeAllListeners('removeListener');
        this._events = objectCreate(null);
        this._eventsCount = 0;
        return this;
      }

      listeners = events[type];

      if (typeof listeners === 'function') {
        this.removeListener(type, listeners);
      } else if (listeners) {
        // LIFO order
        for (i = listeners.length - 1; i >= 0; i--) {
          this.removeListener(type, listeners[i]);
        }
      }

      return this;
    };

function _listeners(target, type, unwrap) {
  var events = target._events;

  if (!events)
    return [];

  var evlistener = events[type];
  if (!evlistener)
    return [];

  if (typeof evlistener === 'function')
    return unwrap ? [evlistener.listener || evlistener] : [evlistener];

  return unwrap ? unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);
}

EventEmitter.prototype.listeners = function listeners(type) {
  return _listeners(this, type, true);
};

EventEmitter.prototype.rawListeners = function rawListeners(type) {
  return _listeners(this, type, false);
};

EventEmitter.listenerCount = function(emitter, type) {
  if (typeof emitter.listenerCount === 'function') {
    return emitter.listenerCount(type);
  } else {
    return listenerCount.call(emitter, type);
  }
};

EventEmitter.prototype.listenerCount = listenerCount;
function listenerCount(type) {
  var events = this._events;

  if (events) {
    var evlistener = events[type];

    if (typeof evlistener === 'function') {
      return 1;
    } else if (evlistener) {
      return evlistener.length;
    }
  }

  return 0;
}

EventEmitter.prototype.eventNames = function eventNames() {
  return this._eventsCount > 0 ? Reflect.ownKeys(this._events) : [];
};

// About 1.5x faster than the two-arg version of Array#splice().
function spliceOne(list, index) {
  for (var i = index, k = i + 1, n = list.length; k < n; i += 1, k += 1)
    list[i] = list[k];
  list.pop();
}

function arrayClone(arr, n) {
  var copy = new Array(n);
  for (var i = 0; i < n; ++i)
    copy[i] = arr[i];
  return copy;
}

function unwrapListeners(arr) {
  var ret = new Array(arr.length);
  for (var i = 0; i < ret.length; ++i) {
    ret[i] = arr[i].listener || arr[i];
  }
  return ret;
}

function objectCreatePolyfill(proto) {
  var F = function() {};
  F.prototype = proto;
  return new F;
}
function objectKeysPolyfill(obj) {
  var keys = [];
  for (var k in obj) if (Object.prototype.hasOwnProperty.call(obj, k)) {
    keys.push(k);
  }
  return k;
}
function functionBindPolyfill(context) {
  var fn = this;
  return function () {
    return fn.apply(context, arguments);
  };
}

},{}],34:[function(require,module,exports){
'use strict';

var isCallable = require('is-callable');

var toStr = Object.prototype.toString;
var hasOwnProperty = Object.prototype.hasOwnProperty;

var forEachArray = function forEachArray(array, iterator, receiver) {
    for (var i = 0, len = array.length; i < len; i++) {
        if (hasOwnProperty.call(array, i)) {
            if (receiver == null) {
                iterator(array[i], i, array);
            } else {
                iterator.call(receiver, array[i], i, array);
            }
        }
    }
};

var forEachString = function forEachString(string, iterator, receiver) {
    for (var i = 0, len = string.length; i < len; i++) {
        // no such thing as a sparse string.
        if (receiver == null) {
            iterator(string.charAt(i), i, string);
        } else {
            iterator.call(receiver, string.charAt(i), i, string);
        }
    }
};

var forEachObject = function forEachObject(object, iterator, receiver) {
    for (var k in object) {
        if (hasOwnProperty.call(object, k)) {
            if (receiver == null) {
                iterator(object[k], k, object);
            } else {
                iterator.call(receiver, object[k], k, object);
            }
        }
    }
};

var forEach = function forEach(list, iterator, thisArg) {
    if (!isCallable(iterator)) {
        throw new TypeError('iterator must be a function');
    }

    var receiver;
    if (arguments.length >= 3) {
        receiver = thisArg;
    }

    if (toStr.call(list) === '[object Array]') {
        forEachArray(list, iterator, receiver);
    } else if (typeof list === 'string') {
        forEachString(list, iterator, receiver);
    } else {
        forEachObject(list, iterator, receiver);
    }
};

module.exports = forEach;

},{"is-callable":51}],35:[function(require,module,exports){

var hasOwn = Object.prototype.hasOwnProperty;
var toString = Object.prototype.toString;

module.exports = function forEach (obj, fn, ctx) {
    if (toString.call(fn) !== '[object Function]') {
        throw new TypeError('iterator must be a function');
    }
    var l = obj.length;
    if (l === +l) {
        for (var i = 0; i < l; i++) {
            fn.call(ctx, obj[i], i, obj);
        }
    } else {
        for (var k in obj) {
            if (hasOwn.call(obj, k)) {
                fn.call(ctx, obj[k], k, obj);
            }
        }
    }
};


},{}],36:[function(require,module,exports){
'use strict';

/* eslint no-invalid-this: 1 */

var ERROR_MESSAGE = 'Function.prototype.bind called on incompatible ';
var slice = Array.prototype.slice;
var toStr = Object.prototype.toString;
var funcType = '[object Function]';

module.exports = function bind(that) {
    var target = this;
    if (typeof target !== 'function' || toStr.call(target) !== funcType) {
        throw new TypeError(ERROR_MESSAGE + target);
    }
    var args = slice.call(arguments, 1);

    var bound;
    var binder = function () {
        if (this instanceof bound) {
            var result = target.apply(
                this,
                args.concat(slice.call(arguments))
            );
            if (Object(result) === result) {
                return result;
            }
            return this;
        } else {
            return target.apply(
                that,
                args.concat(slice.call(arguments))
            );
        }
    };

    var boundLength = Math.max(0, target.length - args.length);
    var boundArgs = [];
    for (var i = 0; i < boundLength; i++) {
        boundArgs.push('$' + i);
    }

    bound = Function('binder', 'return function (' + boundArgs.join(',') + '){ return binder.apply(this,arguments); }')(binder);

    if (target.prototype) {
        var Empty = function Empty() {};
        Empty.prototype = target.prototype;
        bound.prototype = new Empty();
        Empty.prototype = null;
    }

    return bound;
};

},{}],37:[function(require,module,exports){
'use strict';

var implementation = require('./implementation');

module.exports = Function.prototype.bind || implementation;

},{"./implementation":36}],38:[function(require,module,exports){
'use strict';

var functionsHaveNames = function functionsHaveNames() {
	return typeof function f() {}.name === 'string';
};

var gOPD = Object.getOwnPropertyDescriptor;
if (gOPD) {
	try {
		gOPD([], 'length');
	} catch (e) {
		// IE 8 has a broken gOPD
		gOPD = null;
	}
}

functionsHaveNames.functionsHaveConfigurableNames = function functionsHaveConfigurableNames() {
	if (!functionsHaveNames() || !gOPD) {
		return false;
	}
	var desc = gOPD(function () {}, 'name');
	return !!desc && !!desc.configurable;
};

var $bind = Function.prototype.bind;

functionsHaveNames.boundFunctionsHaveNames = function boundFunctionsHaveNames() {
	return functionsHaveNames() && typeof $bind === 'function' && function f() {}.bind().name !== '';
};

module.exports = functionsHaveNames;

},{}],39:[function(require,module,exports){
'use strict';

var undefined;

var $SyntaxError = SyntaxError;
var $Function = Function;
var $TypeError = TypeError;

// eslint-disable-next-line consistent-return
var getEvalledConstructor = function (expressionSyntax) {
	try {
		return $Function('"use strict"; return (' + expressionSyntax + ').constructor;')();
	} catch (e) {}
};

var $gOPD = Object.getOwnPropertyDescriptor;
if ($gOPD) {
	try {
		$gOPD({}, '');
	} catch (e) {
		$gOPD = null; // this is IE 8, which has a broken gOPD
	}
}

var throwTypeError = function () {
	throw new $TypeError();
};
var ThrowTypeError = $gOPD
	? (function () {
		try {
			// eslint-disable-next-line no-unused-expressions, no-caller, no-restricted-properties
			arguments.callee; // IE 8 does not throw here
			return throwTypeError;
		} catch (calleeThrows) {
			try {
				// IE 8 throws on Object.getOwnPropertyDescriptor(arguments, '')
				return $gOPD(arguments, 'callee').get;
			} catch (gOPDthrows) {
				return throwTypeError;
			}
		}
	}())
	: throwTypeError;

var hasSymbols = require('has-symbols')();

var getProto = Object.getPrototypeOf || function (x) { return x.__proto__; }; // eslint-disable-line no-proto

var needsEval = {};

var TypedArray = typeof Uint8Array === 'undefined' ? undefined : getProto(Uint8Array);

var INTRINSICS = {
	'%AggregateError%': typeof AggregateError === 'undefined' ? undefined : AggregateError,
	'%Array%': Array,
	'%ArrayBuffer%': typeof ArrayBuffer === 'undefined' ? undefined : ArrayBuffer,
	'%ArrayIteratorPrototype%': hasSymbols ? getProto([][Symbol.iterator]()) : undefined,
	'%AsyncFromSyncIteratorPrototype%': undefined,
	'%AsyncFunction%': needsEval,
	'%AsyncGenerator%': needsEval,
	'%AsyncGeneratorFunction%': needsEval,
	'%AsyncIteratorPrototype%': needsEval,
	'%Atomics%': typeof Atomics === 'undefined' ? undefined : Atomics,
	'%BigInt%': typeof BigInt === 'undefined' ? undefined : BigInt,
	'%Boolean%': Boolean,
	'%DataView%': typeof DataView === 'undefined' ? undefined : DataView,
	'%Date%': Date,
	'%decodeURI%': decodeURI,
	'%decodeURIComponent%': decodeURIComponent,
	'%encodeURI%': encodeURI,
	'%encodeURIComponent%': encodeURIComponent,
	'%Error%': Error,
	'%eval%': eval, // eslint-disable-line no-eval
	'%EvalError%': EvalError,
	'%Float32Array%': typeof Float32Array === 'undefined' ? undefined : Float32Array,
	'%Float64Array%': typeof Float64Array === 'undefined' ? undefined : Float64Array,
	'%FinalizationRegistry%': typeof FinalizationRegistry === 'undefined' ? undefined : FinalizationRegistry,
	'%Function%': $Function,
	'%GeneratorFunction%': needsEval,
	'%Int8Array%': typeof Int8Array === 'undefined' ? undefined : Int8Array,
	'%Int16Array%': typeof Int16Array === 'undefined' ? undefined : Int16Array,
	'%Int32Array%': typeof Int32Array === 'undefined' ? undefined : Int32Array,
	'%isFinite%': isFinite,
	'%isNaN%': isNaN,
	'%IteratorPrototype%': hasSymbols ? getProto(getProto([][Symbol.iterator]())) : undefined,
	'%JSON%': typeof JSON === 'object' ? JSON : undefined,
	'%Map%': typeof Map === 'undefined' ? undefined : Map,
	'%MapIteratorPrototype%': typeof Map === 'undefined' || !hasSymbols ? undefined : getProto(new Map()[Symbol.iterator]()),
	'%Math%': Math,
	'%Number%': Number,
	'%Object%': Object,
	'%parseFloat%': parseFloat,
	'%parseInt%': parseInt,
	'%Promise%': typeof Promise === 'undefined' ? undefined : Promise,
	'%Proxy%': typeof Proxy === 'undefined' ? undefined : Proxy,
	'%RangeError%': RangeError,
	'%ReferenceError%': ReferenceError,
	'%Reflect%': typeof Reflect === 'undefined' ? undefined : Reflect,
	'%RegExp%': RegExp,
	'%Set%': typeof Set === 'undefined' ? undefined : Set,
	'%SetIteratorPrototype%': typeof Set === 'undefined' || !hasSymbols ? undefined : getProto(new Set()[Symbol.iterator]()),
	'%SharedArrayBuffer%': typeof SharedArrayBuffer === 'undefined' ? undefined : SharedArrayBuffer,
	'%String%': String,
	'%StringIteratorPrototype%': hasSymbols ? getProto(''[Symbol.iterator]()) : undefined,
	'%Symbol%': hasSymbols ? Symbol : undefined,
	'%SyntaxError%': $SyntaxError,
	'%ThrowTypeError%': ThrowTypeError,
	'%TypedArray%': TypedArray,
	'%TypeError%': $TypeError,
	'%Uint8Array%': typeof Uint8Array === 'undefined' ? undefined : Uint8Array,
	'%Uint8ClampedArray%': typeof Uint8ClampedArray === 'undefined' ? undefined : Uint8ClampedArray,
	'%Uint16Array%': typeof Uint16Array === 'undefined' ? undefined : Uint16Array,
	'%Uint32Array%': typeof Uint32Array === 'undefined' ? undefined : Uint32Array,
	'%URIError%': URIError,
	'%WeakMap%': typeof WeakMap === 'undefined' ? undefined : WeakMap,
	'%WeakRef%': typeof WeakRef === 'undefined' ? undefined : WeakRef,
	'%WeakSet%': typeof WeakSet === 'undefined' ? undefined : WeakSet
};

var doEval = function doEval(name) {
	var value;
	if (name === '%AsyncFunction%') {
		value = getEvalledConstructor('async function () {}');
	} else if (name === '%GeneratorFunction%') {
		value = getEvalledConstructor('function* () {}');
	} else if (name === '%AsyncGeneratorFunction%') {
		value = getEvalledConstructor('async function* () {}');
	} else if (name === '%AsyncGenerator%') {
		var fn = doEval('%AsyncGeneratorFunction%');
		if (fn) {
			value = fn.prototype;
		}
	} else if (name === '%AsyncIteratorPrototype%') {
		var gen = doEval('%AsyncGenerator%');
		if (gen) {
			value = getProto(gen.prototype);
		}
	}

	INTRINSICS[name] = value;

	return value;
};

var LEGACY_ALIASES = {
	'%ArrayBufferPrototype%': ['ArrayBuffer', 'prototype'],
	'%ArrayPrototype%': ['Array', 'prototype'],
	'%ArrayProto_entries%': ['Array', 'prototype', 'entries'],
	'%ArrayProto_forEach%': ['Array', 'prototype', 'forEach'],
	'%ArrayProto_keys%': ['Array', 'prototype', 'keys'],
	'%ArrayProto_values%': ['Array', 'prototype', 'values'],
	'%AsyncFunctionPrototype%': ['AsyncFunction', 'prototype'],
	'%AsyncGenerator%': ['AsyncGeneratorFunction', 'prototype'],
	'%AsyncGeneratorPrototype%': ['AsyncGeneratorFunction', 'prototype', 'prototype'],
	'%BooleanPrototype%': ['Boolean', 'prototype'],
	'%DataViewPrototype%': ['DataView', 'prototype'],
	'%DatePrototype%': ['Date', 'prototype'],
	'%ErrorPrototype%': ['Error', 'prototype'],
	'%EvalErrorPrototype%': ['EvalError', 'prototype'],
	'%Float32ArrayPrototype%': ['Float32Array', 'prototype'],
	'%Float64ArrayPrototype%': ['Float64Array', 'prototype'],
	'%FunctionPrototype%': ['Function', 'prototype'],
	'%Generator%': ['GeneratorFunction', 'prototype'],
	'%GeneratorPrototype%': ['GeneratorFunction', 'prototype', 'prototype'],
	'%Int8ArrayPrototype%': ['Int8Array', 'prototype'],
	'%Int16ArrayPrototype%': ['Int16Array', 'prototype'],
	'%Int32ArrayPrototype%': ['Int32Array', 'prototype'],
	'%JSONParse%': ['JSON', 'parse'],
	'%JSONStringify%': ['JSON', 'stringify'],
	'%MapPrototype%': ['Map', 'prototype'],
	'%NumberPrototype%': ['Number', 'prototype'],
	'%ObjectPrototype%': ['Object', 'prototype'],
	'%ObjProto_toString%': ['Object', 'prototype', 'toString'],
	'%ObjProto_valueOf%': ['Object', 'prototype', 'valueOf'],
	'%PromisePrototype%': ['Promise', 'prototype'],
	'%PromiseProto_then%': ['Promise', 'prototype', 'then'],
	'%Promise_all%': ['Promise', 'all'],
	'%Promise_reject%': ['Promise', 'reject'],
	'%Promise_resolve%': ['Promise', 'resolve'],
	'%RangeErrorPrototype%': ['RangeError', 'prototype'],
	'%ReferenceErrorPrototype%': ['ReferenceError', 'prototype'],
	'%RegExpPrototype%': ['RegExp', 'prototype'],
	'%SetPrototype%': ['Set', 'prototype'],
	'%SharedArrayBufferPrototype%': ['SharedArrayBuffer', 'prototype'],
	'%StringPrototype%': ['String', 'prototype'],
	'%SymbolPrototype%': ['Symbol', 'prototype'],
	'%SyntaxErrorPrototype%': ['SyntaxError', 'prototype'],
	'%TypedArrayPrototype%': ['TypedArray', 'prototype'],
	'%TypeErrorPrototype%': ['TypeError', 'prototype'],
	'%Uint8ArrayPrototype%': ['Uint8Array', 'prototype'],
	'%Uint8ClampedArrayPrototype%': ['Uint8ClampedArray', 'prototype'],
	'%Uint16ArrayPrototype%': ['Uint16Array', 'prototype'],
	'%Uint32ArrayPrototype%': ['Uint32Array', 'prototype'],
	'%URIErrorPrototype%': ['URIError', 'prototype'],
	'%WeakMapPrototype%': ['WeakMap', 'prototype'],
	'%WeakSetPrototype%': ['WeakSet', 'prototype']
};

var bind = require('function-bind');
var hasOwn = require('has');
var $concat = bind.call(Function.call, Array.prototype.concat);
var $spliceApply = bind.call(Function.apply, Array.prototype.splice);
var $replace = bind.call(Function.call, String.prototype.replace);
var $strSlice = bind.call(Function.call, String.prototype.slice);

/* adapted from https://github.com/lodash/lodash/blob/4.17.15/dist/lodash.js#L6735-L6744 */
var rePropName = /[^%.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|%$))/g;
var reEscapeChar = /\\(\\)?/g; /** Used to match backslashes in property paths. */
var stringToPath = function stringToPath(string) {
	var first = $strSlice(string, 0, 1);
	var last = $strSlice(string, -1);
	if (first === '%' && last !== '%') {
		throw new $SyntaxError('invalid intrinsic syntax, expected closing `%`');
	} else if (last === '%' && first !== '%') {
		throw new $SyntaxError('invalid intrinsic syntax, expected opening `%`');
	}
	var result = [];
	$replace(string, rePropName, function (match, number, quote, subString) {
		result[result.length] = quote ? $replace(subString, reEscapeChar, '$1') : number || match;
	});
	return result;
};
/* end adaptation */

var getBaseIntrinsic = function getBaseIntrinsic(name, allowMissing) {
	var intrinsicName = name;
	var alias;
	if (hasOwn(LEGACY_ALIASES, intrinsicName)) {
		alias = LEGACY_ALIASES[intrinsicName];
		intrinsicName = '%' + alias[0] + '%';
	}

	if (hasOwn(INTRINSICS, intrinsicName)) {
		var value = INTRINSICS[intrinsicName];
		if (value === needsEval) {
			value = doEval(intrinsicName);
		}
		if (typeof value === 'undefined' && !allowMissing) {
			throw new $TypeError('intrinsic ' + name + ' exists, but is not available. Please file an issue!');
		}

		return {
			alias: alias,
			name: intrinsicName,
			value: value
		};
	}

	throw new $SyntaxError('intrinsic ' + name + ' does not exist!');
};

module.exports = function GetIntrinsic(name, allowMissing) {
	if (typeof name !== 'string' || name.length === 0) {
		throw new $TypeError('intrinsic name must be a non-empty string');
	}
	if (arguments.length > 1 && typeof allowMissing !== 'boolean') {
		throw new $TypeError('"allowMissing" argument must be a boolean');
	}

	var parts = stringToPath(name);
	var intrinsicBaseName = parts.length > 0 ? parts[0] : '';

	var intrinsic = getBaseIntrinsic('%' + intrinsicBaseName + '%', allowMissing);
	var intrinsicRealName = intrinsic.name;
	var value = intrinsic.value;
	var skipFurtherCaching = false;

	var alias = intrinsic.alias;
	if (alias) {
		intrinsicBaseName = alias[0];
		$spliceApply(parts, $concat([0, 1], alias));
	}

	for (var i = 1, isOwn = true; i < parts.length; i += 1) {
		var part = parts[i];
		var first = $strSlice(part, 0, 1);
		var last = $strSlice(part, -1);
		if (
			(
				(first === '"' || first === "'" || first === '`')
				|| (last === '"' || last === "'" || last === '`')
			)
			&& first !== last
		) {
			throw new $SyntaxError('property names with quotes must have matching quotes');
		}
		if (part === 'constructor' || !isOwn) {
			skipFurtherCaching = true;
		}

		intrinsicBaseName += '.' + part;
		intrinsicRealName = '%' + intrinsicBaseName + '%';

		if (hasOwn(INTRINSICS, intrinsicRealName)) {
			value = INTRINSICS[intrinsicRealName];
		} else if (value != null) {
			if (!(part in value)) {
				if (!allowMissing) {
					throw new $TypeError('base intrinsic for ' + name + ' exists, but the property is not available.');
				}
				return void undefined;
			}
			if ($gOPD && (i + 1) >= parts.length) {
				var desc = $gOPD(value, part);
				isOwn = !!desc;

				// By convention, when a data property is converted to an accessor
				// property to emulate a data property that does not suffer from
				// the override mistake, that accessor's getter is marked with
				// an `originalValue` property. Here, when we detect this, we
				// uphold the illusion by pretending to see that original data
				// property, i.e., returning the value rather than the getter
				// itself.
				if (isOwn && 'get' in desc && !('originalValue' in desc.get)) {
					value = desc.get;
				} else {
					value = value[part];
				}
			} else {
				isOwn = hasOwn(value, part);
				value = value[part];
			}

			if (isOwn && !skipFurtherCaching) {
				INTRINSICS[intrinsicRealName] = value;
			}
		}
	}
	return value;
};

},{"function-bind":37,"has":45,"has-symbols":42}],40:[function(require,module,exports){
(function (global){(function (){
'use strict';

var $BigInt = global.BigInt;

module.exports = function hasNativeBigInts() {
	return typeof $BigInt === 'function'
		&& typeof BigInt === 'function'
		&& typeof $BigInt(42) === 'bigint' // eslint-disable-line no-magic-numbers
		&& typeof BigInt(42) === 'bigint'; // eslint-disable-line no-magic-numbers
};

}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})

},{}],41:[function(require,module,exports){
'use strict';

var GetIntrinsic = require('get-intrinsic');

var $defineProperty = GetIntrinsic('%Object.defineProperty%', true);

var hasPropertyDescriptors = function hasPropertyDescriptors() {
	if ($defineProperty) {
		try {
			$defineProperty({}, 'a', { value: 1 });
			return true;
		} catch (e) {
			// IE 8 has a broken defineProperty
			return false;
		}
	}
	return false;
};

hasPropertyDescriptors.hasArrayLengthDefineBug = function hasArrayLengthDefineBug() {
	// node v0.6 has a bug where array lengths can be Set but not Defined
	if (!hasPropertyDescriptors()) {
		return null;
	}
	try {
		return $defineProperty([], 'length', { value: 1 }).length !== 1;
	} catch (e) {
		// In Firefox 4-22, defining length on an array throws an exception.
		return true;
	}
};

module.exports = hasPropertyDescriptors;

},{"get-intrinsic":39}],42:[function(require,module,exports){
'use strict';

var origSymbol = typeof Symbol !== 'undefined' && Symbol;
var hasSymbolSham = require('./shams');

module.exports = function hasNativeSymbols() {
	if (typeof origSymbol !== 'function') { return false; }
	if (typeof Symbol !== 'function') { return false; }
	if (typeof origSymbol('foo') !== 'symbol') { return false; }
	if (typeof Symbol('bar') !== 'symbol') { return false; }

	return hasSymbolSham();
};

},{"./shams":43}],43:[function(require,module,exports){
'use strict';

/* eslint complexity: [2, 18], max-statements: [2, 33] */
module.exports = function hasSymbols() {
	if (typeof Symbol !== 'function' || typeof Object.getOwnPropertySymbols !== 'function') { return false; }
	if (typeof Symbol.iterator === 'symbol') { return true; }

	var obj = {};
	var sym = Symbol('test');
	var symObj = Object(sym);
	if (typeof sym === 'string') { return false; }

	if (Object.prototype.toString.call(sym) !== '[object Symbol]') { return false; }
	if (Object.prototype.toString.call(symObj) !== '[object Symbol]') { return false; }

	// temp disabled per https://github.com/ljharb/object.assign/issues/17
	// if (sym instanceof Symbol) { return false; }
	// temp disabled per https://github.com/WebReflection/get-own-property-symbols/issues/4
	// if (!(symObj instanceof Symbol)) { return false; }

	// if (typeof Symbol.prototype.toString !== 'function') { return false; }
	// if (String(sym) !== Symbol.prototype.toString.call(sym)) { return false; }

	var symVal = 42;
	obj[sym] = symVal;
	for (sym in obj) { return false; } // eslint-disable-line no-restricted-syntax, no-unreachable-loop
	if (typeof Object.keys === 'function' && Object.keys(obj).length !== 0) { return false; }

	if (typeof Object.getOwnPropertyNames === 'function' && Object.getOwnPropertyNames(obj).length !== 0) { return false; }

	var syms = Object.getOwnPropertySymbols(obj);
	if (syms.length !== 1 || syms[0] !== sym) { return false; }

	if (!Object.prototype.propertyIsEnumerable.call(obj, sym)) { return false; }

	if (typeof Object.getOwnPropertyDescriptor === 'function') {
		var descriptor = Object.getOwnPropertyDescriptor(obj, sym);
		if (descriptor.value !== symVal || descriptor.enumerable !== true) { return false; }
	}

	return true;
};

},{}],44:[function(require,module,exports){
'use strict';

var hasSymbols = require('has-symbols/shams');

module.exports = function hasToStringTagShams() {
	return hasSymbols() && !!Symbol.toStringTag;
};

},{"has-symbols/shams":43}],45:[function(require,module,exports){
'use strict';

var bind = require('function-bind');

module.exports = bind.call(Function.call, Object.prototype.hasOwnProperty);

},{"function-bind":37}],46:[function(require,module,exports){
/*! ieee754. BSD-3-Clause License. Feross Aboukhadijeh <https://feross.org/opensource> */
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
  var e, m
  var eLen = (nBytes * 8) - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var nBits = -7
  var i = isLE ? (nBytes - 1) : 0
  var d = isLE ? -1 : 1
  var s = buffer[offset + i]

  i += d

  e = s & ((1 << (-nBits)) - 1)
  s >>= (-nBits)
  nBits += eLen
  for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}

  m = e & ((1 << (-nBits)) - 1)
  e >>= (-nBits)
  nBits += mLen
  for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}

  if (e === 0) {
    e = 1 - eBias
  } else if (e === eMax) {
    return m ? NaN : ((s ? -1 : 1) * Infinity)
  } else {
    m = m + Math.pow(2, mLen)
    e = e - eBias
  }
  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}

exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
  var e, m, c
  var eLen = (nBytes * 8) - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
  var i = isLE ? 0 : (nBytes - 1)
  var d = isLE ? 1 : -1
  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0

  value = Math.abs(value)

  if (isNaN(value) || value === Infinity) {
    m = isNaN(value) ? 1 : 0
    e = eMax
  } else {
    e = Math.floor(Math.log(value) / Math.LN2)
    if (value * (c = Math.pow(2, -e)) < 1) {
      e--
      c *= 2
    }
    if (e + eBias >= 1) {
      value += rt / c
    } else {
      value += rt * Math.pow(2, 1 - eBias)
    }
    if (value * c >= 2) {
      e++
      c /= 2
    }

    if (e + eBias >= eMax) {
      m = 0
      e = eMax
    } else if (e + eBias >= 1) {
      m = ((value * c) - 1) * Math.pow(2, mLen)
      e = e + eBias
    } else {
      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
      e = 0
    }
  }

  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}

  e = (e << mLen) | m
  eLen += mLen
  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}

  buffer[offset + i - d] |= s * 128
}

},{}],47:[function(require,module,exports){
if (typeof Object.create === 'function') {
  // implementation from standard node.js 'util' module
  module.exports = function inherits(ctor, superCtor) {
    if (superCtor) {
      ctor.super_ = superCtor
      ctor.prototype = Object.create(superCtor.prototype, {
        constructor: {
          value: ctor,
          enumerable: false,
          writable: true,
          configurable: true
        }
      })
    }
  };
} else {
  // old school shim for old browsers
  module.exports = function inherits(ctor, superCtor) {
    if (superCtor) {
      ctor.super_ = superCtor
      var TempCtor = function () {}
      TempCtor.prototype = superCtor.prototype
      ctor.prototype = new TempCtor()
      ctor.prototype.constructor = ctor
    }
  }
}

},{}],48:[function(require,module,exports){
'use strict';

var hasToStringTag = require('has-tostringtag/shams')();
var callBound = require('call-bind/callBound');

var $toString = callBound('Object.prototype.toString');

var isStandardArguments = function isArguments(value) {
	if (hasToStringTag && value && typeof value === 'object' && Symbol.toStringTag in value) {
		return false;
	}
	return $toString(value) === '[object Arguments]';
};

var isLegacyArguments = function isArguments(value) {
	if (isStandardArguments(value)) {
		return true;
	}
	return value !== null &&
		typeof value === 'object' &&
		typeof value.length === 'number' &&
		value.length >= 0 &&
		$toString(value) !== '[object Array]' &&
		$toString(value.callee) === '[object Function]';
};

var supportsStandardArguments = (function () {
	return isStandardArguments(arguments);
}());

isStandardArguments.isLegacyArguments = isLegacyArguments; // for tests

module.exports = supportsStandardArguments ? isStandardArguments : isLegacyArguments;

},{"call-bind/callBound":11,"has-tostringtag/shams":44}],49:[function(require,module,exports){
'use strict';

var hasBigInts = require('has-bigints')();

if (hasBigInts) {
	var bigIntValueOf = BigInt.prototype.valueOf;
	var tryBigInt = function tryBigIntObject(value) {
		try {
			bigIntValueOf.call(value);
			return true;
		} catch (e) {
		}
		return false;
	};

	module.exports = function isBigInt(value) {
		if (
			value === null
			|| typeof value === 'undefined'
			|| typeof value === 'boolean'
			|| typeof value === 'string'
			|| typeof value === 'number'
			|| typeof value === 'symbol'
			|| typeof value === 'function'
		) {
			return false;
		}
		if (typeof value === 'bigint') {
			return true;
		}

		return tryBigInt(value);
	};
} else {
	module.exports = function isBigInt(value) {
		return false && value;
	};
}

},{"has-bigints":40}],50:[function(require,module,exports){
'use strict';

var callBound = require('call-bind/callBound');
var $boolToStr = callBound('Boolean.prototype.toString');
var $toString = callBound('Object.prototype.toString');

var tryBooleanObject = function booleanBrandCheck(value) {
	try {
		$boolToStr(value);
		return true;
	} catch (e) {
		return false;
	}
};
var boolClass = '[object Boolean]';
var hasToStringTag = require('has-tostringtag/shams')();

module.exports = function isBoolean(value) {
	if (typeof value === 'boolean') {
		return true;
	}
	if (value === null || typeof value !== 'object') {
		return false;
	}
	return hasToStringTag && Symbol.toStringTag in value ? tryBooleanObject(value) : $toString(value) === boolClass;
};

},{"call-bind/callBound":11,"has-tostringtag/shams":44}],51:[function(require,module,exports){
'use strict';

var fnToStr = Function.prototype.toString;
var reflectApply = typeof Reflect === 'object' && Reflect !== null && Reflect.apply;
var badArrayLike;
var isCallableMarker;
if (typeof reflectApply === 'function' && typeof Object.defineProperty === 'function') {
	try {
		badArrayLike = Object.defineProperty({}, 'length', {
			get: function () {
				throw isCallableMarker;
			}
		});
		isCallableMarker = {};
		// eslint-disable-next-line no-throw-literal
		reflectApply(function () { throw 42; }, null, badArrayLike);
	} catch (_) {
		if (_ !== isCallableMarker) {
			reflectApply = null;
		}
	}
} else {
	reflectApply = null;
}

var constructorRegex = /^\s*class\b/;
var isES6ClassFn = function isES6ClassFunction(value) {
	try {
		var fnStr = fnToStr.call(value);
		return constructorRegex.test(fnStr);
	} catch (e) {
		return false; // not a function
	}
};

var tryFunctionObject = function tryFunctionToStr(value) {
	try {
		if (isES6ClassFn(value)) { return false; }
		fnToStr.call(value);
		return true;
	} catch (e) {
		return false;
	}
};
var toStr = Object.prototype.toString;
var fnClass = '[object Function]';
var genClass = '[object GeneratorFunction]';
var hasToStringTag = typeof Symbol === 'function' && !!Symbol.toStringTag; // better: use `has-tostringtag`
/* globals document: false */
var documentDotAll = typeof document === 'object' && typeof document.all === 'undefined' && document.all !== undefined ? document.all : {};

module.exports = reflectApply
	? function isCallable(value) {
		if (value === documentDotAll) { return true; }
		if (!value) { return false; }
		if (typeof value !== 'function' && typeof value !== 'object') { return false; }
		if (typeof value === 'function' && !value.prototype) { return true; }
		try {
			reflectApply(value, null, badArrayLike);
		} catch (e) {
			if (e !== isCallableMarker) { return false; }
		}
		return !isES6ClassFn(value);
	}
	: function isCallable(value) {
		if (value === documentDotAll) { return true; }
		if (!value) { return false; }
		if (typeof value !== 'function' && typeof value !== 'object') { return false; }
		if (typeof value === 'function' && !value.prototype) { return true; }
		if (hasToStringTag) { return tryFunctionObject(value); }
		if (isES6ClassFn(value)) { return false; }
		var strClass = toStr.call(value);
		return strClass === fnClass || strClass === genClass;
	};

},{}],52:[function(require,module,exports){
'use strict';

var getDay = Date.prototype.getDay;
var tryDateObject = function tryDateGetDayCall(value) {
	try {
		getDay.call(value);
		return true;
	} catch (e) {
		return false;
	}
};

var toStr = Object.prototype.toString;
var dateClass = '[object Date]';
var hasToStringTag = require('has-tostringtag/shams')();

module.exports = function isDateObject(value) {
	if (typeof value !== 'object' || value === null) {
		return false;
	}
	return hasToStringTag ? tryDateObject(value) : toStr.call(value) === dateClass;
};

},{"has-tostringtag/shams":44}],53:[function(require,module,exports){
'use strict';

var $Map = typeof Map === 'function' && Map.prototype ? Map : null;
var $Set = typeof Set === 'function' && Set.prototype ? Set : null;

var exported;

if (!$Map) {
	// eslint-disable-next-line no-unused-vars
	exported = function isMap(x) {
		// `Map` is not present in this environment.
		return false;
	};
}

var $mapHas = $Map ? Map.prototype.has : null;
var $setHas = $Set ? Set.prototype.has : null;
if (!exported && !$mapHas) {
	// eslint-disable-next-line no-unused-vars
	exported = function isMap(x) {
		// `Map` does not have a `has` method
		return false;
	};
}

module.exports = exported || function isMap(x) {
	if (!x || typeof x !== 'object') {
		return false;
	}
	try {
		$mapHas.call(x);
		if ($setHas) {
			try {
				$setHas.call(x);
			} catch (e) {
				return true;
			}
		}
		return x instanceof $Map; // core-js workaround, pre-v2.5.0
	} catch (e) {}
	return false;
};

},{}],54:[function(require,module,exports){
'use strict';

var numToStr = Number.prototype.toString;
var tryNumberObject = function tryNumberObject(value) {
	try {
		numToStr.call(value);
		return true;
	} catch (e) {
		return false;
	}
};
var toStr = Object.prototype.toString;
var numClass = '[object Number]';
var hasToStringTag = require('has-tostringtag/shams')();

module.exports = function isNumberObject(value) {
	if (typeof value === 'number') {
		return true;
	}
	if (typeof value !== 'object') {
		return false;
	}
	return hasToStringTag ? tryNumberObject(value) : toStr.call(value) === numClass;
};

},{"has-tostringtag/shams":44}],55:[function(require,module,exports){
'use strict';

var callBound = require('call-bind/callBound');
var hasToStringTag = require('has-tostringtag/shams')();
var has;
var $exec;
var isRegexMarker;
var badStringifier;

if (hasToStringTag) {
	has = callBound('Object.prototype.hasOwnProperty');
	$exec = callBound('RegExp.prototype.exec');
	isRegexMarker = {};

	var throwRegexMarker = function () {
		throw isRegexMarker;
	};
	badStringifier = {
		toString: throwRegexMarker,
		valueOf: throwRegexMarker
	};

	if (typeof Symbol.toPrimitive === 'symbol') {
		badStringifier[Symbol.toPrimitive] = throwRegexMarker;
	}
}

var $toString = callBound('Object.prototype.toString');
var gOPD = Object.getOwnPropertyDescriptor;
var regexClass = '[object RegExp]';

module.exports = hasToStringTag
	// eslint-disable-next-line consistent-return
	? function isRegex(value) {
		if (!value || typeof value !== 'object') {
			return false;
		}

		var descriptor = gOPD(value, 'lastIndex');
		var hasLastIndexDataProperty = descriptor && has(descriptor, 'value');
		if (!hasLastIndexDataProperty) {
			return false;
		}

		try {
			$exec(value, badStringifier);
		} catch (e) {
			return e === isRegexMarker;
		}
	}
	: function isRegex(value) {
		// In older browsers, typeof regex incorrectly returns 'function'
		if (!value || (typeof value !== 'object' && typeof value !== 'function')) {
			return false;
		}

		return $toString(value) === regexClass;
	};

},{"call-bind/callBound":11,"has-tostringtag/shams":44}],56:[function(require,module,exports){
'use strict';

var $Map = typeof Map === 'function' && Map.prototype ? Map : null;
var $Set = typeof Set === 'function' && Set.prototype ? Set : null;

var exported;

if (!$Set) {
	// eslint-disable-next-line no-unused-vars
	exported = function isSet(x) {
		// `Set` is not present in this environment.
		return false;
	};
}

var $mapHas = $Map ? Map.prototype.has : null;
var $setHas = $Set ? Set.prototype.has : null;
if (!exported && !$setHas) {
	// eslint-disable-next-line no-unused-vars
	exported = function isSet(x) {
		// `Set` does not have a `has` method
		return false;
	};
}

module.exports = exported || function isSet(x) {
	if (!x || typeof x !== 'object') {
		return false;
	}
	try {
		$setHas.call(x);
		if ($mapHas) {
			try {
				$mapHas.call(x);
			} catch (e) {
				return true;
			}
		}
		return x instanceof $Set; // core-js workaround, pre-v2.5.0
	} catch (e) {}
	return false;
};

},{}],57:[function(require,module,exports){
'use strict';

var strValue = String.prototype.valueOf;
var tryStringObject = function tryStringObject(value) {
	try {
		strValue.call(value);
		return true;
	} catch (e) {
		return false;
	}
};
var toStr = Object.prototype.toString;
var strClass = '[object String]';
var hasToStringTag = require('has-tostringtag/shams')();

module.exports = function isString(value) {
	if (typeof value === 'string') {
		return true;
	}
	if (typeof value !== 'object') {
		return false;
	}
	return hasToStringTag ? tryStringObject(value) : toStr.call(value) === strClass;
};

},{"has-tostringtag/shams":44}],58:[function(require,module,exports){
'use strict';

var toStr = Object.prototype.toString;
var hasSymbols = require('has-symbols')();

if (hasSymbols) {
	var symToStr = Symbol.prototype.toString;
	var symStringRegex = /^Symbol\(.*\)$/;
	var isSymbolObject = function isRealSymbolObject(value) {
		if (typeof value.valueOf() !== 'symbol') {
			return false;
		}
		return symStringRegex.test(symToStr.call(value));
	};

	module.exports = function isSymbol(value) {
		if (typeof value === 'symbol') {
			return true;
		}
		if (toStr.call(value) !== '[object Symbol]') {
			return false;
		}
		try {
			return isSymbolObject(value);
		} catch (e) {
			return false;
		}
	};
} else {

	module.exports = function isSymbol(value) {
		// this environment does not support Symbols.
		return false && value;
	};
}

},{"has-symbols":42}],59:[function(require,module,exports){
(function (global){(function (){
'use strict';

var forEach = require('foreach');
var availableTypedArrays = require('available-typed-arrays');
var callBound = require('call-bind/callBound');

var $toString = callBound('Object.prototype.toString');
var hasToStringTag = require('has-tostringtag/shams')();

var g = typeof globalThis === 'undefined' ? global : globalThis;
var typedArrays = availableTypedArrays();

var $indexOf = callBound('Array.prototype.indexOf', true) || function indexOf(array, value) {
	for (var i = 0; i < array.length; i += 1) {
		if (array[i] === value) {
			return i;
		}
	}
	return -1;
};
var $slice = callBound('String.prototype.slice');
var toStrTags = {};
var gOPD = require('es-abstract/helpers/getOwnPropertyDescriptor');
var getPrototypeOf = Object.getPrototypeOf; // require('getprototypeof');
if (hasToStringTag && gOPD && getPrototypeOf) {
	forEach(typedArrays, function (typedArray) {
		var arr = new g[typedArray]();
		if (Symbol.toStringTag in arr) {
			var proto = getPrototypeOf(arr);
			var descriptor = gOPD(proto, Symbol.toStringTag);
			if (!descriptor) {
				var superProto = getPrototypeOf(proto);
				descriptor = gOPD(superProto, Symbol.toStringTag);
			}
			toStrTags[typedArray] = descriptor.get;
		}
	});
}

var tryTypedArrays = function tryAllTypedArrays(value) {
	var anyTrue = false;
	forEach(toStrTags, function (getter, typedArray) {
		if (!anyTrue) {
			try {
				anyTrue = getter.call(value) === typedArray;
			} catch (e) { /**/ }
		}
	});
	return anyTrue;
};

module.exports = function isTypedArray(value) {
	if (!value || typeof value !== 'object') { return false; }
	if (!hasToStringTag || !(Symbol.toStringTag in value)) {
		var tag = $slice($toString(value), 8, -1);
		return $indexOf(typedArrays, tag) > -1;
	}
	if (!gOPD) { return false; }
	return tryTypedArrays(value);
};

}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})

},{"available-typed-arrays":7,"call-bind/callBound":11,"es-abstract/helpers/getOwnPropertyDescriptor":26,"foreach":35,"has-tostringtag/shams":44}],60:[function(require,module,exports){
'use strict';

var $WeakMap = typeof WeakMap === 'function' && WeakMap.prototype ? WeakMap : null;
var $WeakSet = typeof WeakSet === 'function' && WeakSet.prototype ? WeakSet : null;

var exported;

if (!$WeakMap) {
	// eslint-disable-next-line no-unused-vars
	exported = function isWeakMap(x) {
		// `WeakMap` is not present in this environment.
		return false;
	};
}

var $mapHas = $WeakMap ? $WeakMap.prototype.has : null;
var $setHas = $WeakSet ? $WeakSet.prototype.has : null;
if (!exported && !$mapHas) {
	// eslint-disable-next-line no-unused-vars
	exported = function isWeakMap(x) {
		// `WeakMap` does not have a `has` method
		return false;
	};
}

module.exports = exported || function isWeakMap(x) {
	if (!x || typeof x !== 'object') {
		return false;
	}
	try {
		$mapHas.call(x, $mapHas);
		if ($setHas) {
			try {
				$setHas.call(x, $setHas);
			} catch (e) {
				return true;
			}
		}
		return x instanceof $WeakMap; // core-js workaround, pre-v3
	} catch (e) {}
	return false;
};

},{}],61:[function(require,module,exports){
'use strict';

var GetIntrinsic = require('get-intrinsic');
var callBound = require('call-bind/callBound');

var $WeakSet = GetIntrinsic('%WeakSet%', true);

var $setHas = callBound('WeakSet.prototype.has', true);

if ($setHas) {
	var $mapHas = callBound('WeakMap.prototype.has', true);

	module.exports = function isWeakSet(x) {
		if (!x || typeof x !== 'object') {
			return false;
		}
		try {
			$setHas(x, $setHas);
			if ($mapHas) {
				try {
					$mapHas(x, $mapHas);
				} catch (e) {
					return true;
				}
			}
			return x instanceof $WeakSet; // core-js workaround, pre-v3
		} catch (e) {}
		return false;
	};
} else {
	// eslint-disable-next-line no-unused-vars
	module.exports = function isWeakSet(x) {
		// `WeakSet` does not exist, or does not have a `has` method
		return false;
	};
}

},{"call-bind/callBound":11,"get-intrinsic":39}],62:[function(require,module,exports){
arguments[4][15][0].apply(exports,arguments)
},{"dup":15}],63:[function(require,module,exports){
'use strict';

var has = require('has');
var hasPropertyDescriptors = require('has-property-descriptors');
var isArray = require('isarray');
var functionsHaveConfigurableNames = require('functions-have-names').functionsHaveConfigurableNames();

var $defineProperty = hasPropertyDescriptors() && Object.defineProperty;

var hasArrayLengthDefineBug = hasPropertyDescriptors.hasArrayLengthDefineBug();

var gOPD = Object.getOwnPropertyDescriptor;

var $TypeError = TypeError;
var $SyntaxError = SyntaxError;

module.exports = function mockProperty(obj, prop, options) {
	if (has(options, 'nonEnumerable') && typeof options.nonEnumerable !== 'boolean') {
		throw new $TypeError('`nonEnumerable` option, when present, must be a boolean');
	}
	if (has(options, 'nonWritable') && typeof options.nonWritable !== 'boolean') {
		throw new $TypeError('`nonEnumerable` option, when present, must be a boolean');
	}
	if (has(options, 'delete') && typeof options['delete'] !== 'boolean') {
		throw new $TypeError('`delete` option, when present, must be a boolean');
	}

	var wantsData = has(options, 'value') || has(options, 'nonWritable');
	var wantsAccessor = has(options, 'get') || has(options, 'set');

	if (wantsAccessor) {
		if (wantsData) {
			throw new $TypeError('`value` and `nonWritable` options are mutually exclusive with `get`/`set` options');
		}
		if (
			(has(options, 'get') && typeof options.get !== 'function' && typeof options.get !== 'undefined')
            || (has(options, 'set') && typeof options.set !== 'function' && typeof options.set !== 'undefined')
		) {
			throw new $TypeError('`get` and `set` options, when present, must be functions or `undefined`');
		}
		if (!gOPD || !$defineProperty) {
			throw new $SyntaxError('the `get`/`set` options require native getter/setter support');
		}
	}
	if (options['delete'] && (wantsData || wantsAccessor || has(options, 'nonEnumerable'))) {
		throw new $TypeError('`delete` option must not be set to true when any of `value`, `get`, `set`, `nonWritable`, or `nonEnumerable` are provided');
	}

	var objIsArray = isArray(obj);
	var origDescriptor = gOPD
		? gOPD(obj, prop)
		: {
			configurable: typeof obj === 'function' && prop === 'name' ? functionsHaveConfigurableNames : true,
			enumerable: !(objIsArray && prop === 'length'),
			value: obj[prop],
			writable: true
		};

	var origConfigurable = origDescriptor ? origDescriptor.configurable : true;
	var origEnumerable = origDescriptor ? origDescriptor.enumerable : true;

	if (wantsAccessor) {
		var hasGetter = origDescriptor && typeof origDescriptor.get === 'function';
		var hasSetter = origDescriptor && typeof origDescriptor.set === 'function';
		var hasFutureGetter = has(options, 'get') ? typeof options.get === 'function' : hasGetter;
		var hasFutureSetter = has(options, 'set') ? typeof options.set === 'function' : hasSetter;
		if (!hasFutureGetter && !hasFutureSetter) {
			throw new $TypeError('when the `get` or `set` options are provided, the mocked object property must end up with at least one of a getter or a setter function');
		}
	}

	var isChangingEnumerability = has(options, 'nonEnumerable') ? !options.nonEnumerable !== origEnumerable : false;
	if (origDescriptor && !origDescriptor.configurable) {
		if (isChangingEnumerability) {
			throw new $TypeError('`' + prop + '` is nonconfigurable, and can not be changed');
		}
		if (wantsAccessor) {
			if (has(origDescriptor, 'value')) {
				throw new $TypeError('`' + prop + '` is a nonconfigurable data property, and can not be changed to an accessor');
			}

			var isChangingGetter = has(options, 'get') && has(origDescriptor, 'get') && options.get !== origDescriptor.get;
			var isChangingSetter = has(options, 'set') && has(origDescriptor, 'set') && options.set !== origDescriptor.set;

			if (isChangingGetter || isChangingSetter) {
				throw new $TypeError('`' + prop + '` is nonconfigurable, and can not be changed');
			}
			return function restore() {};
		}
		if (has(origDescriptor, 'get') || has(origDescriptor, 'set')) {
			throw new $TypeError('`' + prop + '` is a nonconfigurable accessor property, and can not be changed to a data property');
		}

		var isChangingValue = has(options, 'value') && has(origDescriptor, 'value') && options.value !== origDescriptor.value;
		var isChangingWriteability = has(options, 'nonWritable') && !options.nonWritable !== origDescriptor.writable;

		if ((!origDescriptor.writable && isChangingValue) || isChangingEnumerability || isChangingWriteability) {
			throw new $TypeError('`' + prop + '` is nonconfigurable, and can not be changed');
		}
		if (!isChangingWriteability && !isChangingValue) {
			return function restore() {};
		}
	}

	if (options['delete']) {
		delete obj[prop]; // eslint-disable-line no-param-reassign
	} else if (
		wantsData
            && !isChangingEnumerability
            && (!origDescriptor || origDescriptor.enumerable)
            && (!has(options, 'nonWritable') || !options.nonWritable)
            && (!origDescriptor || origDescriptor.writable)
            && (!gOPD || !(prop in obj))
	) {
		obj[prop] = options.value; // eslint-disable-line no-param-reassign
	} else {
		if (objIsArray && prop === 'length' && hasArrayLengthDefineBug) {
			throw new $SyntaxError('this environment does not support Define on an array’s length');
		}

		var newEnumerable = has(options, 'nonEnumerable') ? !options.nonEnumerable : origEnumerable;

		if (wantsData) {
			$defineProperty(obj, prop, {
				configurable: origConfigurable,
				enumerable: newEnumerable,
				value: has(options, 'value') ? options.value : origDescriptor.value,
				writable: has(options, 'nonWritable') ? !options.nonWritable : has(origDescriptor, 'writable') ? origDescriptor.writable : true
			});
		} else if (wantsAccessor) {
			var getter = has(options, 'get') ? options.get : origDescriptor && origDescriptor.get;
			var setter = has(options, 'set') ? options.set : origDescriptor && origDescriptor.set;

			$defineProperty(obj, prop, {
				configurable: origConfigurable,
				enumerable: newEnumerable,
				get: getter,
				set: setter
			});
		} else {
			$defineProperty(obj, prop, {
				configurable: origConfigurable,
				enumerable: newEnumerable
			});
		}
	}

	return function restore() {
		if (!origDescriptor) {
			delete obj[prop]; // eslint-disable-line no-param-reassign
		} else if ($defineProperty) {
			if (has(origDescriptor, 'writable')) {
				$defineProperty(obj, prop, {
					configurable: origDescriptor.configurable,
					enumerable: origDescriptor.enumerable,
					value: origDescriptor.value,
					writable: origDescriptor.writable
				});
			} else {
				var oldGetter = origDescriptor && origDescriptor.get;
				var oldSetter = origDescriptor && origDescriptor.set;

				$defineProperty(obj, prop, {
					configurable: origDescriptor.configurable,
					enumerable: origDescriptor.enumerable,
					get: oldGetter,
					set: oldSetter
				});
			}
		} else {
			obj[prop] = origDescriptor.value; // eslint-disable-line no-param-reassign
		}
	};
};

},{"functions-have-names":38,"has":45,"has-property-descriptors":41,"isarray":64}],64:[function(require,module,exports){
arguments[4][15][0].apply(exports,arguments)
},{"dup":15}],65:[function(require,module,exports){
var hasMap = typeof Map === 'function' && Map.prototype;
var mapSizeDescriptor = Object.getOwnPropertyDescriptor && hasMap ? Object.getOwnPropertyDescriptor(Map.prototype, 'size') : null;
var mapSize = hasMap && mapSizeDescriptor && typeof mapSizeDescriptor.get === 'function' ? mapSizeDescriptor.get : null;
var mapForEach = hasMap && Map.prototype.forEach;
var hasSet = typeof Set === 'function' && Set.prototype;
var setSizeDescriptor = Object.getOwnPropertyDescriptor && hasSet ? Object.getOwnPropertyDescriptor(Set.prototype, 'size') : null;
var setSize = hasSet && setSizeDescriptor && typeof setSizeDescriptor.get === 'function' ? setSizeDescriptor.get : null;
var setForEach = hasSet && Set.prototype.forEach;
var hasWeakMap = typeof WeakMap === 'function' && WeakMap.prototype;
var weakMapHas = hasWeakMap ? WeakMap.prototype.has : null;
var hasWeakSet = typeof WeakSet === 'function' && WeakSet.prototype;
var weakSetHas = hasWeakSet ? WeakSet.prototype.has : null;
var hasWeakRef = typeof WeakRef === 'function' && WeakRef.prototype;
var weakRefDeref = hasWeakRef ? WeakRef.prototype.deref : null;
var booleanValueOf = Boolean.prototype.valueOf;
var objectToString = Object.prototype.toString;
var functionToString = Function.prototype.toString;
var $match = String.prototype.match;
var $slice = String.prototype.slice;
var $replace = String.prototype.replace;
var $toUpperCase = String.prototype.toUpperCase;
var $toLowerCase = String.prototype.toLowerCase;
var $test = RegExp.prototype.test;
var $concat = Array.prototype.concat;
var $join = Array.prototype.join;
var $arrSlice = Array.prototype.slice;
var $floor = Math.floor;
var bigIntValueOf = typeof BigInt === 'function' ? BigInt.prototype.valueOf : null;
var gOPS = Object.getOwnPropertySymbols;
var symToString = typeof Symbol === 'function' && typeof Symbol.iterator === 'symbol' ? Symbol.prototype.toString : null;
var hasShammedSymbols = typeof Symbol === 'function' && typeof Symbol.iterator === 'object';
// ie, `has-tostringtag/shams
var toStringTag = typeof Symbol === 'function' && Symbol.toStringTag && (typeof Symbol.toStringTag === hasShammedSymbols ? 'object' : 'symbol')
    ? Symbol.toStringTag
    : null;
var isEnumerable = Object.prototype.propertyIsEnumerable;

var gPO = (typeof Reflect === 'function' ? Reflect.getPrototypeOf : Object.getPrototypeOf) || (
    [].__proto__ === Array.prototype // eslint-disable-line no-proto
        ? function (O) {
            return O.__proto__; // eslint-disable-line no-proto
        }
        : null
);

function addNumericSeparator(num, str) {
    if (
        num === Infinity
        || num === -Infinity
        || num !== num
        || (num && num > -1000 && num < 1000)
        || $test.call(/e/, str)
    ) {
        return str;
    }
    var sepRegex = /[0-9](?=(?:[0-9]{3})+(?![0-9]))/g;
    if (typeof num === 'number') {
        var int = num < 0 ? -$floor(-num) : $floor(num); // trunc(num)
        if (int !== num) {
            var intStr = String(int);
            var dec = $slice.call(str, intStr.length + 1);
            return $replace.call(intStr, sepRegex, '$&_') + '.' + $replace.call($replace.call(dec, /([0-9]{3})/g, '$&_'), /_$/, '');
        }
    }
    return $replace.call(str, sepRegex, '$&_');
}

var inspectCustom = require('./util.inspect').custom;
var inspectSymbol = inspectCustom && isSymbol(inspectCustom) ? inspectCustom : null;

module.exports = function inspect_(obj, options, depth, seen) {
    var opts = options || {};

    if (has(opts, 'quoteStyle') && (opts.quoteStyle !== 'single' && opts.quoteStyle !== 'double')) {
        throw new TypeError('option "quoteStyle" must be "single" or "double"');
    }
    if (
        has(opts, 'maxStringLength') && (typeof opts.maxStringLength === 'number'
            ? opts.maxStringLength < 0 && opts.maxStringLength !== Infinity
            : opts.maxStringLength !== null
        )
    ) {
        throw new TypeError('option "maxStringLength", if provided, must be a positive integer, Infinity, or `null`');
    }
    var customInspect = has(opts, 'customInspect') ? opts.customInspect : true;
    if (typeof customInspect !== 'boolean' && customInspect !== 'symbol') {
        throw new TypeError('option "customInspect", if provided, must be `true`, `false`, or `\'symbol\'`');
    }

    if (
        has(opts, 'indent')
        && opts.indent !== null
        && opts.indent !== '\t'
        && !(parseInt(opts.indent, 10) === opts.indent && opts.indent > 0)
    ) {
        throw new TypeError('option "indent" must be "\\t", an integer > 0, or `null`');
    }
    if (has(opts, 'numericSeparator') && typeof opts.numericSeparator !== 'boolean') {
        throw new TypeError('option "numericSeparator", if provided, must be `true` or `false`');
    }
    var numericSeparator = opts.numericSeparator;

    if (typeof obj === 'undefined') {
        return 'undefined';
    }
    if (obj === null) {
        return 'null';
    }
    if (typeof obj === 'boolean') {
        return obj ? 'true' : 'false';
    }

    if (typeof obj === 'string') {
        return inspectString(obj, opts);
    }
    if (typeof obj === 'number') {
        if (obj === 0) {
            return Infinity / obj > 0 ? '0' : '-0';
        }
        var str = String(obj);
        return numericSeparator ? addNumericSeparator(obj, str) : str;
    }
    if (typeof obj === 'bigint') {
        var bigIntStr = String(obj) + 'n';
        return numericSeparator ? addNumericSeparator(obj, bigIntStr) : bigIntStr;
    }

    var maxDepth = typeof opts.depth === 'undefined' ? 5 : opts.depth;
    if (typeof depth === 'undefined') { depth = 0; }
    if (depth >= maxDepth && maxDepth > 0 && typeof obj === 'object') {
        return isArray(obj) ? '[Array]' : '[Object]';
    }

    var indent = getIndent(opts, depth);

    if (typeof seen === 'undefined') {
        seen = [];
    } else if (indexOf(seen, obj) >= 0) {
        return '[Circular]';
    }

    function inspect(value, from, noIndent) {
        if (from) {
            seen = $arrSlice.call(seen);
            seen.push(from);
        }
        if (noIndent) {
            var newOpts = {
                depth: opts.depth
            };
            if (has(opts, 'quoteStyle')) {
                newOpts.quoteStyle = opts.quoteStyle;
            }
            return inspect_(value, newOpts, depth + 1, seen);
        }
        return inspect_(value, opts, depth + 1, seen);
    }

    if (typeof obj === 'function') {
        var name = nameOf(obj);
        var keys = arrObjKeys(obj, inspect);
        return '[Function' + (name ? ': ' + name : ' (anonymous)') + ']' + (keys.length > 0 ? ' { ' + $join.call(keys, ', ') + ' }' : '');
    }
    if (isSymbol(obj)) {
        var symString = hasShammedSymbols ? $replace.call(String(obj), /^(Symbol\(.*\))_[^)]*$/, '$1') : symToString.call(obj);
        return typeof obj === 'object' && !hasShammedSymbols ? markBoxed(symString) : symString;
    }
    if (isElement(obj)) {
        var s = '<' + $toLowerCase.call(String(obj.nodeName));
        var attrs = obj.attributes || [];
        for (var i = 0; i < attrs.length; i++) {
            s += ' ' + attrs[i].name + '=' + wrapQuotes(quote(attrs[i].value), 'double', opts);
        }
        s += '>';
        if (obj.childNodes && obj.childNodes.length) { s += '...'; }
        s += '</' + $toLowerCase.call(String(obj.nodeName)) + '>';
        return s;
    }
    if (isArray(obj)) {
        if (obj.length === 0) { return '[]'; }
        var xs = arrObjKeys(obj, inspect);
        if (indent && !singleLineValues(xs)) {
            return '[' + indentedJoin(xs, indent) + ']';
        }
        return '[ ' + $join.call(xs, ', ') + ' ]';
    }
    if (isError(obj)) {
        var parts = arrObjKeys(obj, inspect);
        if ('cause' in obj && !isEnumerable.call(obj, 'cause')) {
            return '{ [' + String(obj) + '] ' + $join.call($concat.call('[cause]: ' + inspect(obj.cause), parts), ', ') + ' }';
        }
        if (parts.length === 0) { return '[' + String(obj) + ']'; }
        return '{ [' + String(obj) + '] ' + $join.call(parts, ', ') + ' }';
    }
    if (typeof obj === 'object' && customInspect) {
        if (inspectSymbol && typeof obj[inspectSymbol] === 'function') {
            return obj[inspectSymbol]();
        } else if (customInspect !== 'symbol' && typeof obj.inspect === 'function') {
            return obj.inspect();
        }
    }
    if (isMap(obj)) {
        var mapParts = [];
        mapForEach.call(obj, function (value, key) {
            mapParts.push(inspect(key, obj, true) + ' => ' + inspect(value, obj));
        });
        return collectionOf('Map', mapSize.call(obj), mapParts, indent);
    }
    if (isSet(obj)) {
        var setParts = [];
        setForEach.call(obj, function (value) {
            setParts.push(inspect(value, obj));
        });
        return collectionOf('Set', setSize.call(obj), setParts, indent);
    }
    if (isWeakMap(obj)) {
        return weakCollectionOf('WeakMap');
    }
    if (isWeakSet(obj)) {
        return weakCollectionOf('WeakSet');
    }
    if (isWeakRef(obj)) {
        return weakCollectionOf('WeakRef');
    }
    if (isNumber(obj)) {
        return markBoxed(inspect(Number(obj)));
    }
    if (isBigInt(obj)) {
        return markBoxed(inspect(bigIntValueOf.call(obj)));
    }
    if (isBoolean(obj)) {
        return markBoxed(booleanValueOf.call(obj));
    }
    if (isString(obj)) {
        return markBoxed(inspect(String(obj)));
    }
    if (!isDate(obj) && !isRegExp(obj)) {
        var ys = arrObjKeys(obj, inspect);
        var isPlainObject = gPO ? gPO(obj) === Object.prototype : obj instanceof Object || obj.constructor === Object;
        var protoTag = obj instanceof Object ? '' : 'null prototype';
        var stringTag = !isPlainObject && toStringTag && Object(obj) === obj && toStringTag in obj ? $slice.call(toStr(obj), 8, -1) : protoTag ? 'Object' : '';
        var constructorTag = isPlainObject || typeof obj.constructor !== 'function' ? '' : obj.constructor.name ? obj.constructor.name + ' ' : '';
        var tag = constructorTag + (stringTag || protoTag ? '[' + $join.call($concat.call([], stringTag || [], protoTag || []), ': ') + '] ' : '');
        if (ys.length === 0) { return tag + '{}'; }
        if (indent) {
            return tag + '{' + indentedJoin(ys, indent) + '}';
        }
        return tag + '{ ' + $join.call(ys, ', ') + ' }';
    }
    return String(obj);
};

function wrapQuotes(s, defaultStyle, opts) {
    var quoteChar = (opts.quoteStyle || defaultStyle) === 'double' ? '"' : "'";
    return quoteChar + s + quoteChar;
}

function quote(s) {
    return $replace.call(String(s), /"/g, '&quot;');
}

function isArray(obj) { return toStr(obj) === '[object Array]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); }
function isDate(obj) { return toStr(obj) === '[object Date]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); }
function isRegExp(obj) { return toStr(obj) === '[object RegExp]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); }
function isError(obj) { return toStr(obj) === '[object Error]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); }
function isString(obj) { return toStr(obj) === '[object String]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); }
function isNumber(obj) { return toStr(obj) === '[object Number]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); }
function isBoolean(obj) { return toStr(obj) === '[object Boolean]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); }

// Symbol and BigInt do have Symbol.toStringTag by spec, so that can't be used to eliminate false positives
function isSymbol(obj) {
    if (hasShammedSymbols) {
        return obj && typeof obj === 'object' && obj instanceof Symbol;
    }
    if (typeof obj === 'symbol') {
        return true;
    }
    if (!obj || typeof obj !== 'object' || !symToString) {
        return false;
    }
    try {
        symToString.call(obj);
        return true;
    } catch (e) {}
    return false;
}

function isBigInt(obj) {
    if (!obj || typeof obj !== 'object' || !bigIntValueOf) {
        return false;
    }
    try {
        bigIntValueOf.call(obj);
        return true;
    } catch (e) {}
    return false;
}

var hasOwn = Object.prototype.hasOwnProperty || function (key) { return key in this; };
function has(obj, key) {
    return hasOwn.call(obj, key);
}

function toStr(obj) {
    return objectToString.call(obj);
}

function nameOf(f) {
    if (f.name) { return f.name; }
    var m = $match.call(functionToString.call(f), /^function\s*([\w$]+)/);
    if (m) { return m[1]; }
    return null;
}

function indexOf(xs, x) {
    if (xs.indexOf) { return xs.indexOf(x); }
    for (var i = 0, l = xs.length; i < l; i++) {
        if (xs[i] === x) { return i; }
    }
    return -1;
}

function isMap(x) {
    if (!mapSize || !x || typeof x !== 'object') {
        return false;
    }
    try {
        mapSize.call(x);
        try {
            setSize.call(x);
        } catch (s) {
            return true;
        }
        return x instanceof Map; // core-js workaround, pre-v2.5.0
    } catch (e) {}
    return false;
}

function isWeakMap(x) {
    if (!weakMapHas || !x || typeof x !== 'object') {
        return false;
    }
    try {
        weakMapHas.call(x, weakMapHas);
        try {
            weakSetHas.call(x, weakSetHas);
        } catch (s) {
            return true;
        }
        return x instanceof WeakMap; // core-js workaround, pre-v2.5.0
    } catch (e) {}
    return false;
}

function isWeakRef(x) {
    if (!weakRefDeref || !x || typeof x !== 'object') {
        return false;
    }
    try {
        weakRefDeref.call(x);
        return true;
    } catch (e) {}
    return false;
}

function isSet(x) {
    if (!setSize || !x || typeof x !== 'object') {
        return false;
    }
    try {
        setSize.call(x);
        try {
            mapSize.call(x);
        } catch (m) {
            return true;
        }
        return x instanceof Set; // core-js workaround, pre-v2.5.0
    } catch (e) {}
    return false;
}

function isWeakSet(x) {
    if (!weakSetHas || !x || typeof x !== 'object') {
        return false;
    }
    try {
        weakSetHas.call(x, weakSetHas);
        try {
            weakMapHas.call(x, weakMapHas);
        } catch (s) {
            return true;
        }
        return x instanceof WeakSet; // core-js workaround, pre-v2.5.0
    } catch (e) {}
    return false;
}

function isElement(x) {
    if (!x || typeof x !== 'object') { return false; }
    if (typeof HTMLElement !== 'undefined' && x instanceof HTMLElement) {
        return true;
    }
    return typeof x.nodeName === 'string' && typeof x.getAttribute === 'function';
}

function inspectString(str, opts) {
    if (str.length > opts.maxStringLength) {
        var remaining = str.length - opts.maxStringLength;
        var trailer = '... ' + remaining + ' more character' + (remaining > 1 ? 's' : '');
        return inspectString($slice.call(str, 0, opts.maxStringLength), opts) + trailer;
    }
    // eslint-disable-next-line no-control-regex
    var s = $replace.call($replace.call(str, /(['\\])/g, '\\$1'), /[\x00-\x1f]/g, lowbyte);
    return wrapQuotes(s, 'single', opts);
}

function lowbyte(c) {
    var n = c.charCodeAt(0);
    var x = {
        8: 'b',
        9: 't',
        10: 'n',
        12: 'f',
        13: 'r'
    }[n];
    if (x) { return '\\' + x; }
    return '\\x' + (n < 0x10 ? '0' : '') + $toUpperCase.call(n.toString(16));
}

function markBoxed(str) {
    return 'Object(' + str + ')';
}

function weakCollectionOf(type) {
    return type + ' { ? }';
}

function collectionOf(type, size, entries, indent) {
    var joinedEntries = indent ? indentedJoin(entries, indent) : $join.call(entries, ', ');
    return type + ' (' + size + ') {' + joinedEntries + '}';
}

function singleLineValues(xs) {
    for (var i = 0; i < xs.length; i++) {
        if (indexOf(xs[i], '\n') >= 0) {
            return false;
        }
    }
    return true;
}

function getIndent(opts, depth) {
    var baseIndent;
    if (opts.indent === '\t') {
        baseIndent = '\t';
    } else if (typeof opts.indent === 'number' && opts.indent > 0) {
        baseIndent = $join.call(Array(opts.indent + 1), ' ');
    } else {
        return null;
    }
    return {
        base: baseIndent,
        prev: $join.call(Array(depth + 1), baseIndent)
    };
}

function indentedJoin(xs, indent) {
    if (xs.length === 0) { return ''; }
    var lineJoiner = '\n' + indent.prev + indent.base;
    return lineJoiner + $join.call(xs, ',' + lineJoiner) + '\n' + indent.prev;
}

function arrObjKeys(obj, inspect) {
    var isArr = isArray(obj);
    var xs = [];
    if (isArr) {
        xs.length = obj.length;
        for (var i = 0; i < obj.length; i++) {
            xs[i] = has(obj, i) ? inspect(obj[i], obj) : '';
        }
    }
    var syms = typeof gOPS === 'function' ? gOPS(obj) : [];
    var symMap;
    if (hasShammedSymbols) {
        symMap = {};
        for (var k = 0; k < syms.length; k++) {
            symMap['$' + syms[k]] = syms[k];
        }
    }

    for (var key in obj) { // eslint-disable-line no-restricted-syntax
        if (!has(obj, key)) { continue; } // eslint-disable-line no-restricted-syntax, no-continue
        if (isArr && String(Number(key)) === key && key < obj.length) { continue; } // eslint-disable-line no-restricted-syntax, no-continue
        if (hasShammedSymbols && symMap['$' + key] instanceof Symbol) {
            // this is to prevent shammed Symbols, which are stored as strings, from being included in the string key section
            continue; // eslint-disable-line no-restricted-syntax, no-continue
        } else if ($test.call(/[^\w$]/, key)) {
            xs.push(inspect(key, obj) + ': ' + inspect(obj[key], obj));
        } else {
            xs.push(key + ': ' + inspect(obj[key], obj));
        }
    }
    if (typeof gOPS === 'function') {
        for (var j = 0; j < syms.length; j++) {
            if (isEnumerable.call(obj, syms[j])) {
                xs.push('[' + inspect(syms[j]) + ']: ' + inspect(obj[syms[j]], obj));
            }
        }
    }
    return xs;
}

},{"./util.inspect":9}],66:[function(require,module,exports){
'use strict';

var numberIsNaN = function (value) {
	return value !== value;
};

module.exports = function is(a, b) {
	if (a === 0 && b === 0) {
		return 1 / a === 1 / b;
	}
	if (a === b) {
		return true;
	}
	if (numberIsNaN(a) && numberIsNaN(b)) {
		return true;
	}
	return false;
};


},{}],67:[function(require,module,exports){
'use strict';

var define = require('define-properties');
var callBind = require('call-bind');

var implementation = require('./implementation');
var getPolyfill = require('./polyfill');
var shim = require('./shim');

var polyfill = callBind(getPolyfill(), Object);

define(polyfill, {
	getPolyfill: getPolyfill,
	implementation: implementation,
	shim: shim
});

module.exports = polyfill;

},{"./implementation":66,"./polyfill":68,"./shim":69,"call-bind":12,"define-properties":16}],68:[function(require,module,exports){
'use strict';

var implementation = require('./implementation');

module.exports = function getPolyfill() {
	return typeof Object.is === 'function' ? Object.is : implementation;
};

},{"./implementation":66}],69:[function(require,module,exports){
'use strict';

var getPolyfill = require('./polyfill');
var define = require('define-properties');

module.exports = function shimObjectIs() {
	var polyfill = getPolyfill();
	define(Object, { is: polyfill }, {
		is: function testObjectIs() {
			return Object.is !== polyfill;
		}
	});
	return polyfill;
};

},{"./polyfill":68,"define-properties":16}],70:[function(require,module,exports){
'use strict';

var keysShim;
if (!Object.keys) {
	// modified from https://github.com/es-shims/es5-shim
	var has = Object.prototype.hasOwnProperty;
	var toStr = Object.prototype.toString;
	var isArgs = require('./isArguments'); // eslint-disable-line global-require
	var isEnumerable = Object.prototype.propertyIsEnumerable;
	var hasDontEnumBug = !isEnumerable.call({ toString: null }, 'toString');
	var hasProtoEnumBug = isEnumerable.call(function () {}, 'prototype');
	var dontEnums = [
		'toString',
		'toLocaleString',
		'valueOf',
		'hasOwnProperty',
		'isPrototypeOf',
		'propertyIsEnumerable',
		'constructor'
	];
	var equalsConstructorPrototype = function (o) {
		var ctor = o.constructor;
		return ctor && ctor.prototype === o;
	};
	var excludedKeys = {
		$applicationCache: true,
		$console: true,
		$external: true,
		$frame: true,
		$frameElement: true,
		$frames: true,
		$innerHeight: true,
		$innerWidth: true,
		$onmozfullscreenchange: true,
		$onmozfullscreenerror: true,
		$outerHeight: true,
		$outerWidth: true,
		$pageXOffset: true,
		$pageYOffset: true,
		$parent: true,
		$scrollLeft: true,
		$scrollTop: true,
		$scrollX: true,
		$scrollY: true,
		$self: true,
		$webkitIndexedDB: true,
		$webkitStorageInfo: true,
		$window: true
	};
	var hasAutomationEqualityBug = (function () {
		/* global window */
		if (typeof window === 'undefined') { return false; }
		for (var k in window) {
			try {
				if (!excludedKeys['$' + k] && has.call(window, k) && window[k] !== null && typeof window[k] === 'object') {
					try {
						equalsConstructorPrototype(window[k]);
					} catch (e) {
						return true;
					}
				}
			} catch (e) {
				return true;
			}
		}
		return false;
	}());
	var equalsConstructorPrototypeIfNotBuggy = function (o) {
		/* global window */
		if (typeof window === 'undefined' || !hasAutomationEqualityBug) {
			return equalsConstructorPrototype(o);
		}
		try {
			return equalsConstructorPrototype(o);
		} catch (e) {
			return false;
		}
	};

	keysShim = function keys(object) {
		var isObject = object !== null && typeof object === 'object';
		var isFunction = toStr.call(object) === '[object Function]';
		var isArguments = isArgs(object);
		var isString = isObject && toStr.call(object) === '[object String]';
		var theKeys = [];

		if (!isObject && !isFunction && !isArguments) {
			throw new TypeError('Object.keys called on a non-object');
		}

		var skipProto = hasProtoEnumBug && isFunction;
		if (isString && object.length > 0 && !has.call(object, 0)) {
			for (var i = 0; i < object.length; ++i) {
				theKeys.push(String(i));
			}
		}

		if (isArguments && object.length > 0) {
			for (var j = 0; j < object.length; ++j) {
				theKeys.push(String(j));
			}
		} else {
			for (var name in object) {
				if (!(skipProto && name === 'prototype') && has.call(object, name)) {
					theKeys.push(String(name));
				}
			}
		}

		if (hasDontEnumBug) {
			var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object);

			for (var k = 0; k < dontEnums.length; ++k) {
				if (!(skipConstructor && dontEnums[k] === 'constructor') && has.call(object, dontEnums[k])) {
					theKeys.push(dontEnums[k]);
				}
			}
		}
		return theKeys;
	};
}
module.exports = keysShim;

},{"./isArguments":72}],71:[function(require,module,exports){
'use strict';

var slice = Array.prototype.slice;
var isArgs = require('./isArguments');

var origKeys = Object.keys;
var keysShim = origKeys ? function keys(o) { return origKeys(o); } : require('./implementation');

var originalKeys = Object.keys;

keysShim.shim = function shimObjectKeys() {
	if (Object.keys) {
		var keysWorksWithArguments = (function () {
			// Safari 5.0 bug
			var args = Object.keys(arguments);
			return args && args.length === arguments.length;
		}(1, 2));
		if (!keysWorksWithArguments) {
			Object.keys = function keys(object) { // eslint-disable-line func-name-matching
				if (isArgs(object)) {
					return originalKeys(slice.call(object));
				}
				return originalKeys(object);
			};
		}
	} else {
		Object.keys = keysShim;
	}
	return Object.keys || keysShim;
};

module.exports = keysShim;

},{"./implementation":70,"./isArguments":72}],72:[function(require,module,exports){
'use strict';

var toStr = Object.prototype.toString;

module.exports = function isArguments(value) {
	var str = toStr.call(value);
	var isArgs = str === '[object Arguments]';
	if (!isArgs) {
		isArgs = str !== '[object Array]' &&
			value !== null &&
			typeof value === 'object' &&
			typeof value.length === 'number' &&
			value.length >= 0 &&
			toStr.call(value.callee) === '[object Function]';
	}
	return isArgs;
};

},{}],73:[function(require,module,exports){
'use strict';

// modified from https://github.com/es-shims/es6-shim
var keys = require('object-keys');
var canBeObject = function (obj) {
	return typeof obj !== 'undefined' && obj !== null;
};
var hasSymbols = require('has-symbols/shams')();
var callBound = require('call-bind/callBound');
var toObject = Object;
var $push = callBound('Array.prototype.push');
var $propIsEnumerable = callBound('Object.prototype.propertyIsEnumerable');
var originalGetSymbols = hasSymbols ? Object.getOwnPropertySymbols : null;

// eslint-disable-next-line no-unused-vars
module.exports = function assign(target, source1) {
	if (!canBeObject(target)) { throw new TypeError('target must be an object'); }
	var objTarget = toObject(target);
	var s, source, i, props, syms, value, key;
	for (s = 1; s < arguments.length; ++s) {
		source = toObject(arguments[s]);
		props = keys(source);
		var getSymbols = hasSymbols && (Object.getOwnPropertySymbols || originalGetSymbols);
		if (getSymbols) {
			syms = getSymbols(source);
			for (i = 0; i < syms.length; ++i) {
				key = syms[i];
				if ($propIsEnumerable(source, key)) {
					$push(props, key);
				}
			}
		}
		for (i = 0; i < props.length; ++i) {
			key = props[i];
			value = source[key];
			if ($propIsEnumerable(source, key)) {
				objTarget[key] = value;
			}
		}
	}
	return objTarget;
};

},{"call-bind/callBound":11,"has-symbols/shams":43,"object-keys":71}],74:[function(require,module,exports){
arguments[4][2][0].apply(exports,arguments)
},{"./implementation":73,"./polyfill":75,"./shim":76,"call-bind":12,"define-properties":16,"dup":2}],75:[function(require,module,exports){
'use strict';

var implementation = require('./implementation');

var lacksProperEnumerationOrder = function () {
	if (!Object.assign) {
		return false;
	}
	/*
	 * v8, specifically in node 4.x, has a bug with incorrect property enumeration order
	 * note: this does not detect the bug unless there's 20 characters
	 */
	var str = 'abcdefghijklmnopqrst';
	var letters = str.split('');
	var map = {};
	for (var i = 0; i < letters.length; ++i) {
		map[letters[i]] = letters[i];
	}
	var obj = Object.assign({}, map);
	var actual = '';
	for (var k in obj) {
		actual += k;
	}
	return str !== actual;
};

var assignHasPendingExceptions = function () {
	if (!Object.assign || !Object.preventExtensions) {
		return false;
	}
	/*
	 * Firefox 37 still has "pending exception" logic in its Object.assign implementation,
	 * which is 72% slower than our shim, and Firefox 40's native implementation.
	 */
	var thrower = Object.preventExtensions({ 1: 2 });
	try {
		Object.assign(thrower, 'xy');
	} catch (e) {
		return thrower[1] === 'y';
	}
	return false;
};

module.exports = function getPolyfill() {
	if (!Object.assign) {
		return implementation;
	}
	if (lacksProperEnumerationOrder()) {
		return implementation;
	}
	if (assignHasPendingExceptions()) {
		return implementation;
	}
	return Object.assign;
};

},{"./implementation":73}],76:[function(require,module,exports){
'use strict';

var define = require('define-properties');
var getPolyfill = require('./polyfill');

module.exports = function shimAssign() {
	var polyfill = getPolyfill();
	define(
		Object,
		{ assign: polyfill },
		{ assign: function () { return Object.assign !== polyfill; } }
	);
	return polyfill;
};

},{"./polyfill":75,"define-properties":16}],77:[function(require,module,exports){
(function (process){(function (){
// .dirname, .basename, and .extname methods are extracted from Node.js v8.11.1,
// backported and transplited with Babel, with backwards-compat fixes

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// resolves . and .. elements in a path array with directory names there
// must be no slashes, empty elements, or device names (c:\) in the array
// (so also no leading and trailing slashes - it does not distinguish
// relative and absolute paths)
function normalizeArray(parts, allowAboveRoot) {
  // if the path tries to go above the root, `up` ends up > 0
  var up = 0;
  for (var i = parts.length - 1; i >= 0; i--) {
    var last = parts[i];
    if (last === '.') {
      parts.splice(i, 1);
    } else if (last === '..') {
      parts.splice(i, 1);
      up++;
    } else if (up) {
      parts.splice(i, 1);
      up--;
    }
  }

  // if the path is allowed to go above the root, restore leading ..s
  if (allowAboveRoot) {
    for (; up--; up) {
      parts.unshift('..');
    }
  }

  return parts;
}

// path.resolve([from ...], to)
// posix version
exports.resolve = function() {
  var resolvedPath = '',
      resolvedAbsolute = false;

  for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
    var path = (i >= 0) ? arguments[i] : process.cwd();

    // Skip empty and invalid entries
    if (typeof path !== 'string') {
      throw new TypeError('Arguments to path.resolve must be strings');
    } else if (!path) {
      continue;
    }

    resolvedPath = path + '/' + resolvedPath;
    resolvedAbsolute = path.charAt(0) === '/';
  }

  // At this point the path should be resolved to a full absolute path, but
  // handle relative paths to be safe (might happen when process.cwd() fails)

  // Normalize the path
  resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) {
    return !!p;
  }), !resolvedAbsolute).join('/');

  return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
};

// path.normalize(path)
// posix version
exports.normalize = function(path) {
  var isAbsolute = exports.isAbsolute(path),
      trailingSlash = substr(path, -1) === '/';

  // Normalize the path
  path = normalizeArray(filter(path.split('/'), function(p) {
    return !!p;
  }), !isAbsolute).join('/');

  if (!path && !isAbsolute) {
    path = '.';
  }
  if (path && trailingSlash) {
    path += '/';
  }

  return (isAbsolute ? '/' : '') + path;
};

// posix version
exports.isAbsolute = function(path) {
  return path.charAt(0) === '/';
};

// posix version
exports.join = function() {
  var paths = Array.prototype.slice.call(arguments, 0);
  return exports.normalize(filter(paths, function(p, index) {
    if (typeof p !== 'string') {
      throw new TypeError('Arguments to path.join must be strings');
    }
    return p;
  }).join('/'));
};


// path.relative(from, to)
// posix version
exports.relative = function(from, to) {
  from = exports.resolve(from).substr(1);
  to = exports.resolve(to).substr(1);

  function trim(arr) {
    var start = 0;
    for (; start < arr.length; start++) {
      if (arr[start] !== '') break;
    }

    var end = arr.length - 1;
    for (; end >= 0; end--) {
      if (arr[end] !== '') break;
    }

    if (start > end) return [];
    return arr.slice(start, end - start + 1);
  }

  var fromParts = trim(from.split('/'));
  var toParts = trim(to.split('/'));

  var length = Math.min(fromParts.length, toParts.length);
  var samePartsLength = length;
  for (var i = 0; i < length; i++) {
    if (fromParts[i] !== toParts[i]) {
      samePartsLength = i;
      break;
    }
  }

  var outputParts = [];
  for (var i = samePartsLength; i < fromParts.length; i++) {
    outputParts.push('..');
  }

  outputParts = outputParts.concat(toParts.slice(samePartsLength));

  return outputParts.join('/');
};

exports.sep = '/';
exports.delimiter = ':';

exports.dirname = function (path) {
  if (typeof path !== 'string') path = path + '';
  if (path.length === 0) return '.';
  var code = path.charCodeAt(0);
  var hasRoot = code === 47 /*/*/;
  var end = -1;
  var matchedSlash = true;
  for (var i = path.length - 1; i >= 1; --i) {
    code = path.charCodeAt(i);
    if (code === 47 /*/*/) {
        if (!matchedSlash) {
          end = i;
          break;
        }
      } else {
      // We saw the first non-path separator
      matchedSlash = false;
    }
  }

  if (end === -1) return hasRoot ? '/' : '.';
  if (hasRoot && end === 1) {
    // return '//';
    // Backwards-compat fix:
    return '/';
  }
  return path.slice(0, end);
};

function basename(path) {
  if (typeof path !== 'string') path = path + '';

  var start = 0;
  var end = -1;
  var matchedSlash = true;
  var i;

  for (i = path.length - 1; i >= 0; --i) {
    if (path.charCodeAt(i) === 47 /*/*/) {
        // If we reached a path separator that was not part of a set of path
        // separators at the end of the string, stop now
        if (!matchedSlash) {
          start = i + 1;
          break;
        }
      } else if (end === -1) {
      // We saw the first non-path separator, mark this as the end of our
      // path component
      matchedSlash = false;
      end = i + 1;
    }
  }

  if (end === -1) return '';
  return path.slice(start, end);
}

// Uses a mixed approach for backwards-compatibility, as ext behavior changed
// in new Node.js versions, so only basename() above is backported here
exports.basename = function (path, ext) {
  var f = basename(path);
  if (ext && f.substr(-1 * ext.length) === ext) {
    f = f.substr(0, f.length - ext.length);
  }
  return f;
};

exports.extname = function (path) {
  if (typeof path !== 'string') path = path + '';
  var startDot = -1;
  var startPart = 0;
  var end = -1;
  var matchedSlash = true;
  // Track the state of characters (if any) we see before our first dot and
  // after any path separator we find
  var preDotState = 0;
  for (var i = path.length - 1; i >= 0; --i) {
    var code = path.charCodeAt(i);
    if (code === 47 /*/*/) {
        // If we reached a path separator that was not part of a set of path
        // separators at the end of the string, stop now
        if (!matchedSlash) {
          startPart = i + 1;
          break;
        }
        continue;
      }
    if (end === -1) {
      // We saw the first non-path separator, mark this as the end of our
      // extension
      matchedSlash = false;
      end = i + 1;
    }
    if (code === 46 /*.*/) {
        // If this is our first dot, mark it as the start of our extension
        if (startDot === -1)
          startDot = i;
        else if (preDotState !== 1)
          preDotState = 1;
    } else if (startDot !== -1) {
      // We saw a non-dot and non-path separator before our dot, so we should
      // have a good chance at having a non-empty extension
      preDotState = -1;
    }
  }

  if (startDot === -1 || end === -1 ||
      // We saw a non-dot character immediately before the dot
      preDotState === 0 ||
      // The (right-most) trimmed path component is exactly '..'
      preDotState === 1 && startDot === end - 1 && startDot === startPart + 1) {
    return '';
  }
  return path.slice(startDot, end);
};

function filter (xs, f) {
    if (xs.filter) return xs.filter(f);
    var res = [];
    for (var i = 0; i < xs.length; i++) {
        if (f(xs[i], i, xs)) res.push(xs[i]);
    }
    return res;
}

// String.prototype.substr - negative index don't work in IE8
var substr = 'ab'.substr(-1) === 'b'
    ? function (str, start, len) { return str.substr(start, len) }
    : function (str, start, len) {
        if (start < 0) start = str.length + start;
        return str.substr(start, len);
    }
;

}).call(this)}).call(this,require('_process'))

},{"_process":79}],78:[function(require,module,exports){
(function (process){(function (){
'use strict';

if (typeof process === 'undefined' ||
    !process.version ||
    process.version.indexOf('v0.') === 0 ||
    process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
  module.exports = { nextTick: nextTick };
} else {
  module.exports = process
}

function nextTick(fn, arg1, arg2, arg3) {
  if (typeof fn !== 'function') {
    throw new TypeError('"callback" argument must be a function');
  }
  var len = arguments.length;
  var args, i;
  switch (len) {
  case 0:
  case 1:
    return process.nextTick(fn);
  case 2:
    return process.nextTick(function afterTickOne() {
      fn.call(null, arg1);
    });
  case 3:
    return process.nextTick(function afterTickTwo() {
      fn.call(null, arg1, arg2);
    });
  case 4:
    return process.nextTick(function afterTickThree() {
      fn.call(null, arg1, arg2, arg3);
    });
  default:
    args = new Array(len - 1);
    i = 0;
    while (i < args.length) {
      args[i++] = arguments[i];
    }
    return process.nextTick(function afterTick() {
      fn.apply(null, args);
    });
  }
}


}).call(this)}).call(this,require('_process'))

},{"_process":79}],79:[function(require,module,exports){
// shim for using process in browser
var process = module.exports = {};

// cached from whatever global is present so that test runners that stub it
// don't break things.  But we need to wrap it in a try catch in case it is
// wrapped in strict mode code which doesn't define any globals.  It's inside a
// function because try/catches deoptimize in certain engines.

var cachedSetTimeout;
var cachedClearTimeout;

function defaultSetTimout() {
    throw new Error('setTimeout has not been defined');
}
function defaultClearTimeout () {
    throw new Error('clearTimeout has not been defined');
}
(function () {
    try {
        if (typeof setTimeout === 'function') {
            cachedSetTimeout = setTimeout;
        } else {
            cachedSetTimeout = defaultSetTimout;
        }
    } catch (e) {
        cachedSetTimeout = defaultSetTimout;
    }
    try {
        if (typeof clearTimeout === 'function') {
            cachedClearTimeout = clearTimeout;
        } else {
            cachedClearTimeout = defaultClearTimeout;
        }
    } catch (e) {
        cachedClearTimeout = defaultClearTimeout;
    }
} ())
function runTimeout(fun) {
    if (cachedSetTimeout === setTimeout) {
        //normal enviroments in sane situations
        return setTimeout(fun, 0);
    }
    // if setTimeout wasn't available but was latter defined
    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
        cachedSetTimeout = setTimeout;
        return setTimeout(fun, 0);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. maddness
        return cachedSetTimeout(fun, 0);
    } catch(e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
            return cachedSetTimeout.call(null, fun, 0);
        } catch(e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
            return cachedSetTimeout.call(this, fun, 0);
        }
    }


}
function runClearTimeout(marker) {
    if (cachedClearTimeout === clearTimeout) {
        //normal enviroments in sane situations
        return clearTimeout(marker);
    }
    // if clearTimeout wasn't available but was latter defined
    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
        cachedClearTimeout = clearTimeout;
        return clearTimeout(marker);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. maddness
        return cachedClearTimeout(marker);
    } catch (e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
            return cachedClearTimeout.call(null, marker);
        } catch (e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
            return cachedClearTimeout.call(this, marker);
        }
    }



}
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;

function cleanUpNextTick() {
    if (!draining || !currentQueue) {
        return;
    }
    draining = false;
    if (currentQueue.length) {
        queue = currentQueue.concat(queue);
    } else {
        queueIndex = -1;
    }
    if (queue.length) {
        drainQueue();
    }
}

function drainQueue() {
    if (draining) {
        return;
    }
    var timeout = runTimeout(cleanUpNextTick);
    draining = true;

    var len = queue.length;
    while(len) {
        currentQueue = queue;
        queue = [];
        while (++queueIndex < len) {
            if (currentQueue) {
                currentQueue[queueIndex].run();
            }
        }
        queueIndex = -1;
        len = queue.length;
    }
    currentQueue = null;
    draining = false;
    runClearTimeout(timeout);
}

process.nextTick = function (fun) {
    var args = new Array(arguments.length - 1);
    if (arguments.length > 1) {
        for (var i = 1; i < arguments.length; i++) {
            args[i - 1] = arguments[i];
        }
    }
    queue.push(new Item(fun, args));
    if (queue.length === 1 && !draining) {
        runTimeout(drainQueue);
    }
};

// v8 likes predictible objects
function Item(fun, array) {
    this.fun = fun;
    this.array = array;
}
Item.prototype.run = function () {
    this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};

function noop() {}

process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.prependListener = noop;
process.prependOnceListener = noop;

process.listeners = function (name) { return [] }

process.binding = function (name) {
    throw new Error('process.binding is not supported');
};

process.cwd = function () { return '/' };
process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };

},{}],80:[function(require,module,exports){
module.exports = require('./lib/_stream_duplex.js');

},{"./lib/_stream_duplex.js":81}],81:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// a duplex stream is just a stream that is both readable and writable.
// Since JS doesn't have multiple prototypal inheritance, this class
// prototypally inherits from Readable, and then parasitically from
// Writable.

'use strict';

/*<replacement>*/

var pna = require('process-nextick-args');
/*</replacement>*/

/*<replacement>*/
var objectKeys = Object.keys || function (obj) {
  var keys = [];
  for (var key in obj) {
    keys.push(key);
  }return keys;
};
/*</replacement>*/

module.exports = Duplex;

/*<replacement>*/
var util = Object.create(require('core-util-is'));
util.inherits = require('inherits');
/*</replacement>*/

var Readable = require('./_stream_readable');
var Writable = require('./_stream_writable');

util.inherits(Duplex, Readable);

{
  // avoid scope creep, the keys array can then be collected
  var keys = objectKeys(Writable.prototype);
  for (var v = 0; v < keys.length; v++) {
    var method = keys[v];
    if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
  }
}

function Duplex(options) {
  if (!(this instanceof Duplex)) return new Duplex(options);

  Readable.call(this, options);
  Writable.call(this, options);

  if (options && options.readable === false) this.readable = false;

  if (options && options.writable === false) this.writable = false;

  this.allowHalfOpen = true;
  if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;

  this.once('end', onend);
}

Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function () {
    return this._writableState.highWaterMark;
  }
});

// the no-half-open enforcer
function onend() {
  // if we allow half-open state, or if the writable side ended,
  // then we're ok.
  if (this.allowHalfOpen || this._writableState.ended) return;

  // no more data can be written.
  // But allow more writes to happen in this tick.
  pna.nextTick(onEndNT, this);
}

function onEndNT(self) {
  self.end();
}

Object.defineProperty(Duplex.prototype, 'destroyed', {
  get: function () {
    if (this._readableState === undefined || this._writableState === undefined) {
      return false;
    }
    return this._readableState.destroyed && this._writableState.destroyed;
  },
  set: function (value) {
    // we ignore the value if the stream
    // has not been initialized yet
    if (this._readableState === undefined || this._writableState === undefined) {
      return;
    }

    // backward compatibility, the user is explicitly
    // managing destroyed
    this._readableState.destroyed = value;
    this._writableState.destroyed = value;
  }
});

Duplex.prototype._destroy = function (err, cb) {
  this.push(null);
  this.end();

  pna.nextTick(cb, err);
};
},{"./_stream_readable":83,"./_stream_writable":85,"core-util-is":13,"inherits":47,"process-nextick-args":78}],82:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// a passthrough stream.
// basically just the most minimal sort of Transform stream.
// Every written chunk gets output as-is.

'use strict';

module.exports = PassThrough;

var Transform = require('./_stream_transform');

/*<replacement>*/
var util = Object.create(require('core-util-is'));
util.inherits = require('inherits');
/*</replacement>*/

util.inherits(PassThrough, Transform);

function PassThrough(options) {
  if (!(this instanceof PassThrough)) return new PassThrough(options);

  Transform.call(this, options);
}

PassThrough.prototype._transform = function (chunk, encoding, cb) {
  cb(null, chunk);
};
},{"./_stream_transform":84,"core-util-is":13,"inherits":47}],83:[function(require,module,exports){
(function (process,global){(function (){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';

/*<replacement>*/

var pna = require('process-nextick-args');
/*</replacement>*/

module.exports = Readable;

/*<replacement>*/
var isArray = require('isarray');
/*</replacement>*/

/*<replacement>*/
var Duplex;
/*</replacement>*/

Readable.ReadableState = ReadableState;

/*<replacement>*/
var EE = require('events').EventEmitter;

var EElistenerCount = function (emitter, type) {
  return emitter.listeners(type).length;
};
/*</replacement>*/

/*<replacement>*/
var Stream = require('./internal/streams/stream');
/*</replacement>*/

/*<replacement>*/

var Buffer = require('safe-buffer').Buffer;
var OurUint8Array = global.Uint8Array || function () {};
function _uint8ArrayToBuffer(chunk) {
  return Buffer.from(chunk);
}
function _isUint8Array(obj) {
  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
}

/*</replacement>*/

/*<replacement>*/
var util = Object.create(require('core-util-is'));
util.inherits = require('inherits');
/*</replacement>*/

/*<replacement>*/
var debugUtil = require('util');
var debug = void 0;
if (debugUtil && debugUtil.debuglog) {
  debug = debugUtil.debuglog('stream');
} else {
  debug = function () {};
}
/*</replacement>*/

var BufferList = require('./internal/streams/BufferList');
var destroyImpl = require('./internal/streams/destroy');
var StringDecoder;

util.inherits(Readable, Stream);

var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];

function prependListener(emitter, event, fn) {
  // Sadly this is not cacheable as some libraries bundle their own
  // event emitter implementation with them.
  if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn);

  // This is a hack to make sure that our error handler is attached before any
  // userland ones.  NEVER DO THIS. This is here only because this code needs
  // to continue to work with older versions of Node.js that do not include
  // the prependListener() method. The goal is to eventually remove this hack.
  if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
}

function ReadableState(options, stream) {
  Duplex = Duplex || require('./_stream_duplex');

  options = options || {};

  // Duplex streams are both readable and writable, but share
  // the same options object.
  // However, some cases require setting options to different
  // values for the readable and the writable sides of the duplex stream.
  // These options can be provided separately as readableXXX and writableXXX.
  var isDuplex = stream instanceof Duplex;

  // object stream flag. Used to make read(n) ignore n and to
  // make all the buffer merging and length checks go away
  this.objectMode = !!options.objectMode;

  if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode;

  // the point at which it stops calling _read() to fill the buffer
  // Note: 0 is a valid value, means "don't call _read preemptively ever"
  var hwm = options.highWaterMark;
  var readableHwm = options.readableHighWaterMark;
  var defaultHwm = this.objectMode ? 16 : 16 * 1024;

  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (readableHwm || readableHwm === 0)) this.highWaterMark = readableHwm;else this.highWaterMark = defaultHwm;

  // cast to ints.
  this.highWaterMark = Math.floor(this.highWaterMark);

  // A linked list is used to store data chunks instead of an array because the
  // linked list can remove elements from the beginning faster than
  // array.shift()
  this.buffer = new BufferList();
  this.length = 0;
  this.pipes = null;
  this.pipesCount = 0;
  this.flowing = null;
  this.ended = false;
  this.endEmitted = false;
  this.reading = false;

  // a flag to be able to tell if the event 'readable'/'data' is emitted
  // immediately, or on a later tick.  We set this to true at first, because
  // any actions that shouldn't happen until "later" should generally also
  // not happen before the first read call.
  this.sync = true;

  // whenever we return null, then we set a flag to say
  // that we're awaiting a 'readable' event emission.
  this.needReadable = false;
  this.emittedReadable = false;
  this.readableListening = false;
  this.resumeScheduled = false;

  // has it been destroyed
  this.destroyed = false;

  // Crypto is kind of old and crusty.  Historically, its default string
  // encoding is 'binary' so we have to make this configurable.
  // Everything else in the universe uses 'utf8', though.
  this.defaultEncoding = options.defaultEncoding || 'utf8';

  // the number of writers that are awaiting a drain event in .pipe()s
  this.awaitDrain = 0;

  // if true, a maybeReadMore has been scheduled
  this.readingMore = false;

  this.decoder = null;
  this.encoding = null;
  if (options.encoding) {
    if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
    this.decoder = new StringDecoder(options.encoding);
    this.encoding = options.encoding;
  }
}

function Readable(options) {
  Duplex = Duplex || require('./_stream_duplex');

  if (!(this instanceof Readable)) return new Readable(options);

  this._readableState = new ReadableState(options, this);

  // legacy
  this.readable = true;

  if (options) {
    if (typeof options.read === 'function') this._read = options.read;

    if (typeof options.destroy === 'function') this._destroy = options.destroy;
  }

  Stream.call(this);
}

Object.defineProperty(Readable.prototype, 'destroyed', {
  get: function () {
    if (this._readableState === undefined) {
      return false;
    }
    return this._readableState.destroyed;
  },
  set: function (value) {
    // we ignore the value if the stream
    // has not been initialized yet
    if (!this._readableState) {
      return;
    }

    // backward compatibility, the user is explicitly
    // managing destroyed
    this._readableState.destroyed = value;
  }
});

Readable.prototype.destroy = destroyImpl.destroy;
Readable.prototype._undestroy = destroyImpl.undestroy;
Readable.prototype._destroy = function (err, cb) {
  this.push(null);
  cb(err);
};

// Manually shove something into the read() buffer.
// This returns true if the highWaterMark has not been hit yet,
// similar to how Writable.write() returns true if you should
// write() some more.
Readable.prototype.push = function (chunk, encoding) {
  var state = this._readableState;
  var skipChunkCheck;

  if (!state.objectMode) {
    if (typeof chunk === 'string') {
      encoding = encoding || state.defaultEncoding;
      if (encoding !== state.encoding) {
        chunk = Buffer.from(chunk, encoding);
        encoding = '';
      }
      skipChunkCheck = true;
    }
  } else {
    skipChunkCheck = true;
  }

  return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
};

// Unshift should *always* be something directly out of read()
Readable.prototype.unshift = function (chunk) {
  return readableAddChunk(this, chunk, null, true, false);
};

function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
  var state = stream._readableState;
  if (chunk === null) {
    state.reading = false;
    onEofChunk(stream, state);
  } else {
    var er;
    if (!skipChunkCheck) er = chunkInvalid(state, chunk);
    if (er) {
      stream.emit('error', er);
    } else if (state.objectMode || chunk && chunk.length > 0) {
      if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
        chunk = _uint8ArrayToBuffer(chunk);
      }

      if (addToFront) {
        if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true);
      } else if (state.ended) {
        stream.emit('error', new Error('stream.push() after EOF'));
      } else {
        state.reading = false;
        if (state.decoder && !encoding) {
          chunk = state.decoder.write(chunk);
          if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
        } else {
          addChunk(stream, state, chunk, false);
        }
      }
    } else if (!addToFront) {
      state.reading = false;
    }
  }

  return needMoreData(state);
}

function addChunk(stream, state, chunk, addToFront) {
  if (state.flowing && state.length === 0 && !state.sync) {
    stream.emit('data', chunk);
    stream.read(0);
  } else {
    // update the buffer info.
    state.length += state.objectMode ? 1 : chunk.length;
    if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);

    if (state.needReadable) emitReadable(stream);
  }
  maybeReadMore(stream, state);
}

function chunkInvalid(state, chunk) {
  var er;
  if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
    er = new TypeError('Invalid non-string/buffer chunk');
  }
  return er;
}

// if it's past the high water mark, we can push in some more.
// Also, if we have no data yet, we can stand some
// more bytes.  This is to work around cases where hwm=0,
// such as the repl.  Also, if the push() triggered a
// readable event, and the user called read(largeNumber) such that
// needReadable was set, then we ought to push more, so that another
// 'readable' event will be triggered.
function needMoreData(state) {
  return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
}

Readable.prototype.isPaused = function () {
  return this._readableState.flowing === false;
};

// backwards compatibility.
Readable.prototype.setEncoding = function (enc) {
  if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
  this._readableState.decoder = new StringDecoder(enc);
  this._readableState.encoding = enc;
  return this;
};

// Don't raise the hwm > 8MB
var MAX_HWM = 0x800000;
function computeNewHighWaterMark(n) {
  if (n >= MAX_HWM) {
    n = MAX_HWM;
  } else {
    // Get the next highest power of 2 to prevent increasing hwm excessively in
    // tiny amounts
    n--;
    n |= n >>> 1;
    n |= n >>> 2;
    n |= n >>> 4;
    n |= n >>> 8;
    n |= n >>> 16;
    n++;
  }
  return n;
}

// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function howMuchToRead(n, state) {
  if (n <= 0 || state.length === 0 && state.ended) return 0;
  if (state.objectMode) return 1;
  if (n !== n) {
    // Only flow one buffer at a time
    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
  }
  // If we're asking for more than the current hwm, then raise the hwm.
  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
  if (n <= state.length) return n;
  // Don't have enough
  if (!state.ended) {
    state.needReadable = true;
    return 0;
  }
  return state.length;
}

// you can override either this method, or the async _read(n) below.
Readable.prototype.read = function (n) {
  debug('read', n);
  n = parseInt(n, 10);
  var state = this._readableState;
  var nOrig = n;

  if (n !== 0) state.emittedReadable = false;

  // if we're doing read(0) to trigger a readable event, but we
  // already have a bunch of data in the buffer, then just trigger
  // the 'readable' event and move on.
  if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
    debug('read: emitReadable', state.length, state.ended);
    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
    return null;
  }

  n = howMuchToRead(n, state);

  // if we've ended, and we're now clear, then finish it up.
  if (n === 0 && state.ended) {
    if (state.length === 0) endReadable(this);
    return null;
  }

  // All the actual chunk generation logic needs to be
  // *below* the call to _read.  The reason is that in certain
  // synthetic stream cases, such as passthrough streams, _read
  // may be a completely synchronous operation which may change
  // the state of the read buffer, providing enough data when
  // before there was *not* enough.
  //
  // So, the steps are:
  // 1. Figure out what the state of things will be after we do
  // a read from the buffer.
  //
  // 2. If that resulting state will trigger a _read, then call _read.
  // Note that this may be asynchronous, or synchronous.  Yes, it is
  // deeply ugly to write APIs this way, but that still doesn't mean
  // that the Readable class should behave improperly, as streams are
  // designed to be sync/async agnostic.
  // Take note if the _read call is sync or async (ie, if the read call
  // has returned yet), so that we know whether or not it's safe to emit
  // 'readable' etc.
  //
  // 3. Actually pull the requested chunks out of the buffer and return.

  // if we need a readable event, then we need to do some reading.
  var doRead = state.needReadable;
  debug('need readable', doRead);

  // if we currently have less than the highWaterMark, then also read some
  if (state.length === 0 || state.length - n < state.highWaterMark) {
    doRead = true;
    debug('length less than watermark', doRead);
  }

  // however, if we've ended, then there's no point, and if we're already
  // reading, then it's unnecessary.
  if (state.ended || state.reading) {
    doRead = false;
    debug('reading or ended', doRead);
  } else if (doRead) {
    debug('do read');
    state.reading = true;
    state.sync = true;
    // if the length is currently zero, then we *need* a readable event.
    if (state.length === 0) state.needReadable = true;
    // call internal read method
    this._read(state.highWaterMark);
    state.sync = false;
    // If _read pushed data synchronously, then `reading` will be false,
    // and we need to re-evaluate how much data we can return to the user.
    if (!state.reading) n = howMuchToRead(nOrig, state);
  }

  var ret;
  if (n > 0) ret = fromList(n, state);else ret = null;

  if (ret === null) {
    state.needReadable = true;
    n = 0;
  } else {
    state.length -= n;
  }

  if (state.length === 0) {
    // If we have nothing in the buffer, then we want to know
    // as soon as we *do* get something into the buffer.
    if (!state.ended) state.needReadable = true;

    // If we tried to read() past the EOF, then emit end on the next tick.
    if (nOrig !== n && state.ended) endReadable(this);
  }

  if (ret !== null) this.emit('data', ret);

  return ret;
};

function onEofChunk(stream, state) {
  if (state.ended) return;
  if (state.decoder) {
    var chunk = state.decoder.end();
    if (chunk && chunk.length) {
      state.buffer.push(chunk);
      state.length += state.objectMode ? 1 : chunk.length;
    }
  }
  state.ended = true;

  // emit 'readable' now to make sure it gets picked up.
  emitReadable(stream);
}

// Don't emit readable right away in sync mode, because this can trigger
// another read() call => stack overflow.  This way, it might trigger
// a nextTick recursion warning, but that's not so bad.
function emitReadable(stream) {
  var state = stream._readableState;
  state.needReadable = false;
  if (!state.emittedReadable) {
    debug('emitReadable', state.flowing);
    state.emittedReadable = true;
    if (state.sync) pna.nextTick(emitReadable_, stream);else emitReadable_(stream);
  }
}

function emitReadable_(stream) {
  debug('emit readable');
  stream.emit('readable');
  flow(stream);
}

// at this point, the user has presumably seen the 'readable' event,
// and called read() to consume some data.  that may have triggered
// in turn another _read(n) call, in which case reading = true if
// it's in progress.
// However, if we're not ended, or reading, and the length < hwm,
// then go ahead and try to read some more preemptively.
function maybeReadMore(stream, state) {
  if (!state.readingMore) {
    state.readingMore = true;
    pna.nextTick(maybeReadMore_, stream, state);
  }
}

function maybeReadMore_(stream, state) {
  var len = state.length;
  while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
    debug('maybeReadMore read 0');
    stream.read(0);
    if (len === state.length)
      // didn't get any data, stop spinning.
      break;else len = state.length;
  }
  state.readingMore = false;
}

// abstract method.  to be overridden in specific implementation classes.
// call cb(er, data) where data is <= n in length.
// for virtual (non-string, non-buffer) streams, "length" is somewhat
// arbitrary, and perhaps not very meaningful.
Readable.prototype._read = function (n) {
  this.emit('error', new Error('_read() is not implemented'));
};

Readable.prototype.pipe = function (dest, pipeOpts) {
  var src = this;
  var state = this._readableState;

  switch (state.pipesCount) {
    case 0:
      state.pipes = dest;
      break;
    case 1:
      state.pipes = [state.pipes, dest];
      break;
    default:
      state.pipes.push(dest);
      break;
  }
  state.pipesCount += 1;
  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);

  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;

  var endFn = doEnd ? onend : unpipe;
  if (state.endEmitted) pna.nextTick(endFn);else src.once('end', endFn);

  dest.on('unpipe', onunpipe);
  function onunpipe(readable, unpipeInfo) {
    debug('onunpipe');
    if (readable === src) {
      if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
        unpipeInfo.hasUnpiped = true;
        cleanup();
      }
    }
  }

  function onend() {
    debug('onend');
    dest.end();
  }

  // when the dest drains, it reduces the awaitDrain counter
  // on the source.  This would be more elegant with a .once()
  // handler in flow(), but adding and removing repeatedly is
  // too slow.
  var ondrain = pipeOnDrain(src);
  dest.on('drain', ondrain);

  var cleanedUp = false;
  function cleanup() {
    debug('cleanup');
    // cleanup event handlers once the pipe is broken
    dest.removeListener('close', onclose);
    dest.removeListener('finish', onfinish);
    dest.removeListener('drain', ondrain);
    dest.removeListener('error', onerror);
    dest.removeListener('unpipe', onunpipe);
    src.removeListener('end', onend);
    src.removeListener('end', unpipe);
    src.removeListener('data', ondata);

    cleanedUp = true;

    // if the reader is waiting for a drain event from this
    // specific writer, then it would cause it to never start
    // flowing again.
    // So, if this is awaiting a drain, then we just call it now.
    // If we don't know, then assume that we are waiting for one.
    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
  }

  // If the user pushes more data while we're writing to dest then we'll end up
  // in ondata again. However, we only want to increase awaitDrain once because
  // dest will only emit one 'drain' event for the multiple writes.
  // => Introduce a guard on increasing awaitDrain.
  var increasedAwaitDrain = false;
  src.on('data', ondata);
  function ondata(chunk) {
    debug('ondata');
    increasedAwaitDrain = false;
    var ret = dest.write(chunk);
    if (false === ret && !increasedAwaitDrain) {
      // If the user unpiped during `dest.write()`, it is possible
      // to get stuck in a permanently paused state if that write
      // also returned false.
      // => Check whether `dest` is still a piping destination.
      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
        debug('false write response, pause', src._readableState.awaitDrain);
        src._readableState.awaitDrain++;
        increasedAwaitDrain = true;
      }
      src.pause();
    }
  }

  // if the dest has an error, then stop piping into it.
  // however, don't suppress the throwing behavior for this.
  function onerror(er) {
    debug('onerror', er);
    unpipe();
    dest.removeListener('error', onerror);
    if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);
  }

  // Make sure our error handler is attached before userland ones.
  prependListener(dest, 'error', onerror);

  // Both close and finish should trigger unpipe, but only once.
  function onclose() {
    dest.removeListener('finish', onfinish);
    unpipe();
  }
  dest.once('close', onclose);
  function onfinish() {
    debug('onfinish');
    dest.removeListener('close', onclose);
    unpipe();
  }
  dest.once('finish', onfinish);

  function unpipe() {
    debug('unpipe');
    src.unpipe(dest);
  }

  // tell the dest that it's being piped to
  dest.emit('pipe', src);

  // start the flow if it hasn't been started already.
  if (!state.flowing) {
    debug('pipe resume');
    src.resume();
  }

  return dest;
};

function pipeOnDrain(src) {
  return function () {
    var state = src._readableState;
    debug('pipeOnDrain', state.awaitDrain);
    if (state.awaitDrain) state.awaitDrain--;
    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
      state.flowing = true;
      flow(src);
    }
  };
}

Readable.prototype.unpipe = function (dest) {
  var state = this._readableState;
  var unpipeInfo = { hasUnpiped: false };

  // if we're not piping anywhere, then do nothing.
  if (state.pipesCount === 0) return this;

  // just one destination.  most common case.
  if (state.pipesCount === 1) {
    // passed in one, but it's not the right one.
    if (dest && dest !== state.pipes) return this;

    if (!dest) dest = state.pipes;

    // got a match.
    state.pipes = null;
    state.pipesCount = 0;
    state.flowing = false;
    if (dest) dest.emit('unpipe', this, unpipeInfo);
    return this;
  }

  // slow case. multiple pipe destinations.

  if (!dest) {
    // remove all.
    var dests = state.pipes;
    var len = state.pipesCount;
    state.pipes = null;
    state.pipesCount = 0;
    state.flowing = false;

    for (var i = 0; i < len; i++) {
      dests[i].emit('unpipe', this, unpipeInfo);
    }return this;
  }

  // try to find the right one.
  var index = indexOf(state.pipes, dest);
  if (index === -1) return this;

  state.pipes.splice(index, 1);
  state.pipesCount -= 1;
  if (state.pipesCount === 1) state.pipes = state.pipes[0];

  dest.emit('unpipe', this, unpipeInfo);

  return this;
};

// set up data events if they are asked for
// Ensure readable listeners eventually get something
Readable.prototype.on = function (ev, fn) {
  var res = Stream.prototype.on.call(this, ev, fn);

  if (ev === 'data') {
    // Start flowing on next tick if stream isn't explicitly paused
    if (this._readableState.flowing !== false) this.resume();
  } else if (ev === 'readable') {
    var state = this._readableState;
    if (!state.endEmitted && !state.readableListening) {
      state.readableListening = state.needReadable = true;
      state.emittedReadable = false;
      if (!state.reading) {
        pna.nextTick(nReadingNextTick, this);
      } else if (state.length) {
        emitReadable(this);
      }
    }
  }

  return res;
};
Readable.prototype.addListener = Readable.prototype.on;

function nReadingNextTick(self) {
  debug('readable nexttick read 0');
  self.read(0);
}

// pause() and resume() are remnants of the legacy readable stream API
// If the user uses them, then switch into old mode.
Readable.prototype.resume = function () {
  var state = this._readableState;
  if (!state.flowing) {
    debug('resume');
    state.flowing = true;
    resume(this, state);
  }
  return this;
};

function resume(stream, state) {
  if (!state.resumeScheduled) {
    state.resumeScheduled = true;
    pna.nextTick(resume_, stream, state);
  }
}

function resume_(stream, state) {
  if (!state.reading) {
    debug('resume read 0');
    stream.read(0);
  }

  state.resumeScheduled = false;
  state.awaitDrain = 0;
  stream.emit('resume');
  flow(stream);
  if (state.flowing && !state.reading) stream.read(0);
}

Readable.prototype.pause = function () {
  debug('call pause flowing=%j', this._readableState.flowing);
  if (false !== this._readableState.flowing) {
    debug('pause');
    this._readableState.flowing = false;
    this.emit('pause');
  }
  return this;
};

function flow(stream) {
  var state = stream._readableState;
  debug('flow', state.flowing);
  while (state.flowing && stream.read() !== null) {}
}

// wrap an old-style stream as the async data source.
// This is *not* part of the readable stream interface.
// It is an ugly unfortunate mess of history.
Readable.prototype.wrap = function (stream) {
  var _this = this;

  var state = this._readableState;
  var paused = false;

  stream.on('end', function () {
    debug('wrapped end');
    if (state.decoder && !state.ended) {
      var chunk = state.decoder.end();
      if (chunk && chunk.length) _this.push(chunk);
    }

    _this.push(null);
  });

  stream.on('data', function (chunk) {
    debug('wrapped data');
    if (state.decoder) chunk = state.decoder.write(chunk);

    // don't skip over falsy values in objectMode
    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;

    var ret = _this.push(chunk);
    if (!ret) {
      paused = true;
      stream.pause();
    }
  });

  // proxy all the other methods.
  // important when wrapping filters and duplexes.
  for (var i in stream) {
    if (this[i] === undefined && typeof stream[i] === 'function') {
      this[i] = function (method) {
        return function () {
          return stream[method].apply(stream, arguments);
        };
      }(i);
    }
  }

  // proxy certain important events.
  for (var n = 0; n < kProxyEvents.length; n++) {
    stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
  }

  // when we try to consume some more bytes, simply unpause the
  // underlying stream.
  this._read = function (n) {
    debug('wrapped _read', n);
    if (paused) {
      paused = false;
      stream.resume();
    }
  };

  return this;
};

Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function () {
    return this._readableState.highWaterMark;
  }
});

// exposed for testing purposes only.
Readable._fromList = fromList;

// Pluck off n bytes from an array of buffers.
// Length is the combined lengths of all the buffers in the list.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function fromList(n, state) {
  // nothing buffered
  if (state.length === 0) return null;

  var ret;
  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
    // read it all, truncate the list
    if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);
    state.buffer.clear();
  } else {
    // read part of list
    ret = fromListPartial(n, state.buffer, state.decoder);
  }

  return ret;
}

// Extracts only enough buffered data to satisfy the amount requested.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function fromListPartial(n, list, hasStrings) {
  var ret;
  if (n < list.head.data.length) {
    // slice is the same for buffers and strings
    ret = list.head.data.slice(0, n);
    list.head.data = list.head.data.slice(n);
  } else if (n === list.head.data.length) {
    // first chunk is a perfect match
    ret = list.shift();
  } else {
    // result spans more than one buffer
    ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);
  }
  return ret;
}

// Copies a specified amount of characters from the list of buffered data
// chunks.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function copyFromBufferString(n, list) {
  var p = list.head;
  var c = 1;
  var ret = p.data;
  n -= ret.length;
  while (p = p.next) {
    var str = p.data;
    var nb = n > str.length ? str.length : n;
    if (nb === str.length) ret += str;else ret += str.slice(0, n);
    n -= nb;
    if (n === 0) {
      if (nb === str.length) {
        ++c;
        if (p.next) list.head = p.next;else list.head = list.tail = null;
      } else {
        list.head = p;
        p.data = str.slice(nb);
      }
      break;
    }
    ++c;
  }
  list.length -= c;
  return ret;
}

// Copies a specified amount of bytes from the list of buffered data chunks.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function copyFromBuffer(n, list) {
  var ret = Buffer.allocUnsafe(n);
  var p = list.head;
  var c = 1;
  p.data.copy(ret);
  n -= p.data.length;
  while (p = p.next) {
    var buf = p.data;
    var nb = n > buf.length ? buf.length : n;
    buf.copy(ret, ret.length - n, 0, nb);
    n -= nb;
    if (n === 0) {
      if (nb === buf.length) {
        ++c;
        if (p.next) list.head = p.next;else list.head = list.tail = null;
      } else {
        list.head = p;
        p.data = buf.slice(nb);
      }
      break;
    }
    ++c;
  }
  list.length -= c;
  return ret;
}

function endReadable(stream) {
  var state = stream._readableState;

  // If we get here before consuming all the bytes, then that is a
  // bug in node.  Should never happen.
  if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream');

  if (!state.endEmitted) {
    state.ended = true;
    pna.nextTick(endReadableNT, state, stream);
  }
}

function endReadableNT(state, stream) {
  // Check that we didn't get one last unshift.
  if (!state.endEmitted && state.length === 0) {
    state.endEmitted = true;
    stream.readable = false;
    stream.emit('end');
  }
}

function indexOf(xs, x) {
  for (var i = 0, l = xs.length; i < l; i++) {
    if (xs[i] === x) return i;
  }
  return -1;
}
}).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})

},{"./_stream_duplex":81,"./internal/streams/BufferList":86,"./internal/streams/destroy":87,"./internal/streams/stream":88,"_process":79,"core-util-is":13,"events":33,"inherits":47,"isarray":62,"process-nextick-args":78,"safe-buffer":89,"string_decoder/":90,"util":9}],84:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// a transform stream is a readable/writable stream where you do
// something with the data.  Sometimes it's called a "filter",
// but that's not a great name for it, since that implies a thing where
// some bits pass through, and others are simply ignored.  (That would
// be a valid example of a transform, of course.)
//
// While the output is causally related to the input, it's not a
// necessarily symmetric or synchronous transformation.  For example,
// a zlib stream might take multiple plain-text writes(), and then
// emit a single compressed chunk some time in the future.
//
// Here's how this works:
//
// The Transform stream has all the aspects of the readable and writable
// stream classes.  When you write(chunk), that calls _write(chunk,cb)
// internally, and returns false if there's a lot of pending writes
// buffered up.  When you call read(), that calls _read(n) until
// there's enough pending readable data buffered up.
//
// In a transform stream, the written data is placed in a buffer.  When
// _read(n) is called, it transforms the queued up data, calling the
// buffered _write cb's as it consumes chunks.  If consuming a single
// written chunk would result in multiple output chunks, then the first
// outputted bit calls the readcb, and subsequent chunks just go into
// the read buffer, and will cause it to emit 'readable' if necessary.
//
// This way, back-pressure is actually determined by the reading side,
// since _read has to be called to start processing a new chunk.  However,
// a pathological inflate type of transform can cause excessive buffering
// here.  For example, imagine a stream where every byte of input is
// interpreted as an integer from 0-255, and then results in that many
// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
// 1kb of data being output.  In this case, you could write a very small
// amount of input, and end up with a very large amount of output.  In
// such a pathological inflating mechanism, there'd be no way to tell
// the system to stop doing the transform.  A single 4MB write could
// cause the system to run out of memory.
//
// However, even in such a pathological case, only a single written chunk
// would be consumed, and then the rest would wait (un-transformed) until
// the results of the previous transformed chunk were consumed.

'use strict';

module.exports = Transform;

var Duplex = require('./_stream_duplex');

/*<replacement>*/
var util = Object.create(require('core-util-is'));
util.inherits = require('inherits');
/*</replacement>*/

util.inherits(Transform, Duplex);

function afterTransform(er, data) {
  var ts = this._transformState;
  ts.transforming = false;

  var cb = ts.writecb;

  if (!cb) {
    return this.emit('error', new Error('write callback called multiple times'));
  }

  ts.writechunk = null;
  ts.writecb = null;

  if (data != null) // single equals check for both `null` and `undefined`
    this.push(data);

  cb(er);

  var rs = this._readableState;
  rs.reading = false;
  if (rs.needReadable || rs.length < rs.highWaterMark) {
    this._read(rs.highWaterMark);
  }
}

function Transform(options) {
  if (!(this instanceof Transform)) return new Transform(options);

  Duplex.call(this, options);

  this._transformState = {
    afterTransform: afterTransform.bind(this),
    needTransform: false,
    transforming: false,
    writecb: null,
    writechunk: null,
    writeencoding: null
  };

  // start out asking for a readable event once data is transformed.
  this._readableState.needReadable = true;

  // we have implemented the _read method, and done the other things
  // that Readable wants before the first _read call, so unset the
  // sync guard flag.
  this._readableState.sync = false;

  if (options) {
    if (typeof options.transform === 'function') this._transform = options.transform;

    if (typeof options.flush === 'function') this._flush = options.flush;
  }

  // When the writable side finishes, then flush out anything remaining.
  this.on('prefinish', prefinish);
}

function prefinish() {
  var _this = this;

  if (typeof this._flush === 'function') {
    this._flush(function (er, data) {
      done(_this, er, data);
    });
  } else {
    done(this, null, null);
  }
}

Transform.prototype.push = function (chunk, encoding) {
  this._transformState.needTransform = false;
  return Duplex.prototype.push.call(this, chunk, encoding);
};

// This is the part where you do stuff!
// override this function in implementation classes.
// 'chunk' is an input chunk.
//
// Call `push(newChunk)` to pass along transformed output
// to the readable side.  You may call 'push' zero or more times.
//
// Call `cb(err)` when you are done with this chunk.  If you pass
// an error, then that'll put the hurt on the whole operation.  If you
// never call cb(), then you'll never get another chunk.
Transform.prototype._transform = function (chunk, encoding, cb) {
  throw new Error('_transform() is not implemented');
};

Transform.prototype._write = function (chunk, encoding, cb) {
  var ts = this._transformState;
  ts.writecb = cb;
  ts.writechunk = chunk;
  ts.writeencoding = encoding;
  if (!ts.transforming) {
    var rs = this._readableState;
    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
  }
};

// Doesn't matter what the args are here.
// _transform does all the work.
// That we got here means that the readable side wants more data.
Transform.prototype._read = function (n) {
  var ts = this._transformState;

  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
    ts.transforming = true;
    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
  } else {
    // mark that we need a transform, so that any data that comes in
    // will get processed, now that we've asked for it.
    ts.needTransform = true;
  }
};

Transform.prototype._destroy = function (err, cb) {
  var _this2 = this;

  Duplex.prototype._destroy.call(this, err, function (err2) {
    cb(err2);
    _this2.emit('close');
  });
};

function done(stream, er, data) {
  if (er) return stream.emit('error', er);

  if (data != null) // single equals check for both `null` and `undefined`
    stream.push(data);

  // if there's nothing in the write buffer, then that means
  // that nothing more will ever be provided
  if (stream._writableState.length) throw new Error('Calling transform done when ws.length != 0');

  if (stream._transformState.transforming) throw new Error('Calling transform done when still transforming');

  return stream.push(null);
}
},{"./_stream_duplex":81,"core-util-is":13,"inherits":47}],85:[function(require,module,exports){
(function (process,global,setImmediate){(function (){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// A bit simpler than readable streams.
// Implement an async ._write(chunk, encoding, cb), and it'll handle all
// the drain event emission and buffering.

'use strict';

/*<replacement>*/

var pna = require('process-nextick-args');
/*</replacement>*/

module.exports = Writable;

/* <replacement> */
function WriteReq(chunk, encoding, cb) {
  this.chunk = chunk;
  this.encoding = encoding;
  this.callback = cb;
  this.next = null;
}

// It seems a linked list but it is not
// there will be only 2 of these for each stream
function CorkedRequest(state) {
  var _this = this;

  this.next = null;
  this.entry = null;
  this.finish = function () {
    onCorkedFinish(_this, state);
  };
}
/* </replacement> */

/*<replacement>*/
var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick;
/*</replacement>*/

/*<replacement>*/
var Duplex;
/*</replacement>*/

Writable.WritableState = WritableState;

/*<replacement>*/
var util = Object.create(require('core-util-is'));
util.inherits = require('inherits');
/*</replacement>*/

/*<replacement>*/
var internalUtil = {
  deprecate: require('util-deprecate')
};
/*</replacement>*/

/*<replacement>*/
var Stream = require('./internal/streams/stream');
/*</replacement>*/

/*<replacement>*/

var Buffer = require('safe-buffer').Buffer;
var OurUint8Array = global.Uint8Array || function () {};
function _uint8ArrayToBuffer(chunk) {
  return Buffer.from(chunk);
}
function _isUint8Array(obj) {
  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
}

/*</replacement>*/

var destroyImpl = require('./internal/streams/destroy');

util.inherits(Writable, Stream);

function nop() {}

function WritableState(options, stream) {
  Duplex = Duplex || require('./_stream_duplex');

  options = options || {};

  // Duplex streams are both readable and writable, but share
  // the same options object.
  // However, some cases require setting options to different
  // values for the readable and the writable sides of the duplex stream.
  // These options can be provided separately as readableXXX and writableXXX.
  var isDuplex = stream instanceof Duplex;

  // object stream flag to indicate whether or not this stream
  // contains buffers or objects.
  this.objectMode = !!options.objectMode;

  if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;

  // the point at which write() starts returning false
  // Note: 0 is a valid value, means that we always return false if
  // the entire buffer is not flushed immediately on write()
  var hwm = options.highWaterMark;
  var writableHwm = options.writableHighWaterMark;
  var defaultHwm = this.objectMode ? 16 : 16 * 1024;

  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm;

  // cast to ints.
  this.highWaterMark = Math.floor(this.highWaterMark);

  // if _final has been called
  this.finalCalled = false;

  // drain event flag.
  this.needDrain = false;
  // at the start of calling end()
  this.ending = false;
  // when end() has been called, and returned
  this.ended = false;
  // when 'finish' is emitted
  this.finished = false;

  // has it been destroyed
  this.destroyed = false;

  // should we decode strings into buffers before passing to _write?
  // this is here so that some node-core streams can optimize string
  // handling at a lower level.
  var noDecode = options.decodeStrings === false;
  this.decodeStrings = !noDecode;

  // Crypto is kind of old and crusty.  Historically, its default string
  // encoding is 'binary' so we have to make this configurable.
  // Everything else in the universe uses 'utf8', though.
  this.defaultEncoding = options.defaultEncoding || 'utf8';

  // not an actual buffer we keep track of, but a measurement
  // of how much we're waiting to get pushed to some underlying
  // socket or file.
  this.length = 0;

  // a flag to see when we're in the middle of a write.
  this.writing = false;

  // when true all writes will be buffered until .uncork() call
  this.corked = 0;

  // a flag to be able to tell if the onwrite cb is called immediately,
  // or on a later tick.  We set this to true at first, because any
  // actions that shouldn't happen until "later" should generally also
  // not happen before the first write call.
  this.sync = true;

  // a flag to know if we're processing previously buffered items, which
  // may call the _write() callback in the same tick, so that we don't
  // end up in an overlapped onwrite situation.
  this.bufferProcessing = false;

  // the callback that's passed to _write(chunk,cb)
  this.onwrite = function (er) {
    onwrite(stream, er);
  };

  // the callback that the user supplies to write(chunk,encoding,cb)
  this.writecb = null;

  // the amount that is being written when _write is called.
  this.writelen = 0;

  this.bufferedRequest = null;
  this.lastBufferedRequest = null;

  // number of pending user-supplied write callbacks
  // this must be 0 before 'finish' can be emitted
  this.pendingcb = 0;

  // emit prefinish if the only thing we're waiting for is _write cbs
  // This is relevant for synchronous Transform streams
  this.prefinished = false;

  // True if the error was already emitted and should not be thrown again
  this.errorEmitted = false;

  // count buffered requests
  this.bufferedRequestCount = 0;

  // allocate the first CorkedRequest, there is always
  // one allocated and free to use, and we maintain at most two
  this.corkedRequestsFree = new CorkedRequest(this);
}

WritableState.prototype.getBuffer = function getBuffer() {
  var current = this.bufferedRequest;
  var out = [];
  while (current) {
    out.push(current);
    current = current.next;
  }
  return out;
};

(function () {
  try {
    Object.defineProperty(WritableState.prototype, 'buffer', {
      get: internalUtil.deprecate(function () {
        return this.getBuffer();
      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
    });
  } catch (_) {}
})();

// Test _writableState for inheritance to account for Duplex streams,
// whose prototype chain only points to Readable.
var realHasInstance;
if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
  realHasInstance = Function.prototype[Symbol.hasInstance];
  Object.defineProperty(Writable, Symbol.hasInstance, {
    value: function (object) {
      if (realHasInstance.call(this, object)) return true;
      if (this !== Writable) return false;

      return object && object._writableState instanceof WritableState;
    }
  });
} else {
  realHasInstance = function (object) {
    return object instanceof this;
  };
}

function Writable(options) {
  Duplex = Duplex || require('./_stream_duplex');

  // Writable ctor is applied to Duplexes, too.
  // `realHasInstance` is necessary because using plain `instanceof`
  // would return false, as no `_writableState` property is attached.

  // Trying to use the custom `instanceof` for Writable here will also break the
  // Node.js LazyTransform implementation, which has a non-trivial getter for
  // `_writableState` that would lead to infinite recursion.
  if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
    return new Writable(options);
  }

  this._writableState = new WritableState(options, this);

  // legacy.
  this.writable = true;

  if (options) {
    if (typeof options.write === 'function') this._write = options.write;

    if (typeof options.writev === 'function') this._writev = options.writev;

    if (typeof options.destroy === 'function') this._destroy = options.destroy;

    if (typeof options.final === 'function') this._final = options.final;
  }

  Stream.call(this);
}

// Otherwise people can pipe Writable streams, which is just wrong.
Writable.prototype.pipe = function () {
  this.emit('error', new Error('Cannot pipe, not readable'));
};

function writeAfterEnd(stream, cb) {
  var er = new Error('write after end');
  // TODO: defer error events consistently everywhere, not just the cb
  stream.emit('error', er);
  pna.nextTick(cb, er);
}

// Checks that a user-supplied chunk is valid, especially for the particular
// mode the stream is in. Currently this means that `null` is never accepted
// and undefined/non-string values are only allowed in object mode.
function validChunk(stream, state, chunk, cb) {
  var valid = true;
  var er = false;

  if (chunk === null) {
    er = new TypeError('May not write null values to stream');
  } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
    er = new TypeError('Invalid non-string/buffer chunk');
  }
  if (er) {
    stream.emit('error', er);
    pna.nextTick(cb, er);
    valid = false;
  }
  return valid;
}

Writable.prototype.write = function (chunk, encoding, cb) {
  var state = this._writableState;
  var ret = false;
  var isBuf = !state.objectMode && _isUint8Array(chunk);

  if (isBuf && !Buffer.isBuffer(chunk)) {
    chunk = _uint8ArrayToBuffer(chunk);
  }

  if (typeof encoding === 'function') {
    cb = encoding;
    encoding = null;
  }

  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;

  if (typeof cb !== 'function') cb = nop;

  if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
    state.pendingcb++;
    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
  }

  return ret;
};

Writable.prototype.cork = function () {
  var state = this._writableState;

  state.corked++;
};

Writable.prototype.uncork = function () {
  var state = this._writableState;

  if (state.corked) {
    state.corked--;

    if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
  }
};

Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
  // node::ParseEncoding() requires lower case.
  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
  this._writableState.defaultEncoding = encoding;
  return this;
};

function decodeChunk(state, chunk, encoding) {
  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
    chunk = Buffer.from(chunk, encoding);
  }
  return chunk;
}

Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function () {
    return this._writableState.highWaterMark;
  }
});

// if we're already writing something, then just put this
// in the queue, and wait our turn.  Otherwise, call _write
// If we return false, then we need a drain event, so set that flag.
function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
  if (!isBuf) {
    var newChunk = decodeChunk(state, chunk, encoding);
    if (chunk !== newChunk) {
      isBuf = true;
      encoding = 'buffer';
      chunk = newChunk;
    }
  }
  var len = state.objectMode ? 1 : chunk.length;

  state.length += len;

  var ret = state.length < state.highWaterMark;
  // we must ensure that previous needDrain will not be reset to false.
  if (!ret) state.needDrain = true;

  if (state.writing || state.corked) {
    var last = state.lastBufferedRequest;
    state.lastBufferedRequest = {
      chunk: chunk,
      encoding: encoding,
      isBuf: isBuf,
      callback: cb,
      next: null
    };
    if (last) {
      last.next = state.lastBufferedRequest;
    } else {
      state.bufferedRequest = state.lastBufferedRequest;
    }
    state.bufferedRequestCount += 1;
  } else {
    doWrite(stream, state, false, len, chunk, encoding, cb);
  }

  return ret;
}

function doWrite(stream, state, writev, len, chunk, encoding, cb) {
  state.writelen = len;
  state.writecb = cb;
  state.writing = true;
  state.sync = true;
  if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
  state.sync = false;
}

function onwriteError(stream, state, sync, er, cb) {
  --state.pendingcb;

  if (sync) {
    // defer the callback if we are being called synchronously
    // to avoid piling up things on the stack
    pna.nextTick(cb, er);
    // this can emit finish, and it will always happen
    // after error
    pna.nextTick(finishMaybe, stream, state);
    stream._writableState.errorEmitted = true;
    stream.emit('error', er);
  } else {
    // the caller expect this to happen before if
    // it is async
    cb(er);
    stream._writableState.errorEmitted = true;
    stream.emit('error', er);
    // this can emit finish, but finish must
    // always follow error
    finishMaybe(stream, state);
  }
}

function onwriteStateUpdate(state) {
  state.writing = false;
  state.writecb = null;
  state.length -= state.writelen;
  state.writelen = 0;
}

function onwrite(stream, er) {
  var state = stream._writableState;
  var sync = state.sync;
  var cb = state.writecb;

  onwriteStateUpdate(state);

  if (er) onwriteError(stream, state, sync, er, cb);else {
    // Check if we're actually ready to finish, but don't emit yet
    var finished = needFinish(state);

    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
      clearBuffer(stream, state);
    }

    if (sync) {
      /*<replacement>*/
      asyncWrite(afterWrite, stream, state, finished, cb);
      /*</replacement>*/
    } else {
      afterWrite(stream, state, finished, cb);
    }
  }
}

function afterWrite(stream, state, finished, cb) {
  if (!finished) onwriteDrain(stream, state);
  state.pendingcb--;
  cb();
  finishMaybe(stream, state);
}

// Must force callback to be called on nextTick, so that we don't
// emit 'drain' before the write() consumer gets the 'false' return
// value, and has a chance to attach a 'drain' listener.
function onwriteDrain(stream, state) {
  if (state.length === 0 && state.needDrain) {
    state.needDrain = false;
    stream.emit('drain');
  }
}

// if there's something in the buffer waiting, then process it
function clearBuffer(stream, state) {
  state.bufferProcessing = true;
  var entry = state.bufferedRequest;

  if (stream._writev && entry && entry.next) {
    // Fast case, write everything using _writev()
    var l = state.bufferedRequestCount;
    var buffer = new Array(l);
    var holder = state.corkedRequestsFree;
    holder.entry = entry;

    var count = 0;
    var allBuffers = true;
    while (entry) {
      buffer[count] = entry;
      if (!entry.isBuf) allBuffers = false;
      entry = entry.next;
      count += 1;
    }
    buffer.allBuffers = allBuffers;

    doWrite(stream, state, true, state.length, buffer, '', holder.finish);

    // doWrite is almost always async, defer these to save a bit of time
    // as the hot path ends with doWrite
    state.pendingcb++;
    state.lastBufferedRequest = null;
    if (holder.next) {
      state.corkedRequestsFree = holder.next;
      holder.next = null;
    } else {
      state.corkedRequestsFree = new CorkedRequest(state);
    }
    state.bufferedRequestCount = 0;
  } else {
    // Slow case, write chunks one-by-one
    while (entry) {
      var chunk = entry.chunk;
      var encoding = entry.encoding;
      var cb = entry.callback;
      var len = state.objectMode ? 1 : chunk.length;

      doWrite(stream, state, false, len, chunk, encoding, cb);
      entry = entry.next;
      state.bufferedRequestCount--;
      // if we didn't call the onwrite immediately, then
      // it means that we need to wait until it does.
      // also, that means that the chunk and cb are currently
      // being processed, so move the buffer counter past them.
      if (state.writing) {
        break;
      }
    }

    if (entry === null) state.lastBufferedRequest = null;
  }

  state.bufferedRequest = entry;
  state.bufferProcessing = false;
}

Writable.prototype._write = function (chunk, encoding, cb) {
  cb(new Error('_write() is not implemented'));
};

Writable.prototype._writev = null;

Writable.prototype.end = function (chunk, encoding, cb) {
  var state = this._writableState;

  if (typeof chunk === 'function') {
    cb = chunk;
    chunk = null;
    encoding = null;
  } else if (typeof encoding === 'function') {
    cb = encoding;
    encoding = null;
  }

  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);

  // .end() fully uncorks
  if (state.corked) {
    state.corked = 1;
    this.uncork();
  }

  // ignore unnecessary end() calls.
  if (!state.ending && !state.finished) endWritable(this, state, cb);
};

function needFinish(state) {
  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
}
function callFinal(stream, state) {
  stream._final(function (err) {
    state.pendingcb--;
    if (err) {
      stream.emit('error', err);
    }
    state.prefinished = true;
    stream.emit('prefinish');
    finishMaybe(stream, state);
  });
}
function prefinish(stream, state) {
  if (!state.prefinished && !state.finalCalled) {
    if (typeof stream._final === 'function') {
      state.pendingcb++;
      state.finalCalled = true;
      pna.nextTick(callFinal, stream, state);
    } else {
      state.prefinished = true;
      stream.emit('prefinish');
    }
  }
}

function finishMaybe(stream, state) {
  var need = needFinish(state);
  if (need) {
    prefinish(stream, state);
    if (state.pendingcb === 0) {
      state.finished = true;
      stream.emit('finish');
    }
  }
  return need;
}

function endWritable(stream, state, cb) {
  state.ending = true;
  finishMaybe(stream, state);
  if (cb) {
    if (state.finished) pna.nextTick(cb);else stream.once('finish', cb);
  }
  state.ended = true;
  stream.writable = false;
}

function onCorkedFinish(corkReq, state, err) {
  var entry = corkReq.entry;
  corkReq.entry = null;
  while (entry) {
    var cb = entry.callback;
    state.pendingcb--;
    cb(err);
    entry = entry.next;
  }
  if (state.corkedRequestsFree) {
    state.corkedRequestsFree.next = corkReq;
  } else {
    state.corkedRequestsFree = corkReq;
  }
}

Object.defineProperty(Writable.prototype, 'destroyed', {
  get: function () {
    if (this._writableState === undefined) {
      return false;
    }
    return this._writableState.destroyed;
  },
  set: function (value) {
    // we ignore the value if the stream
    // has not been initialized yet
    if (!this._writableState) {
      return;
    }

    // backward compatibility, the user is explicitly
    // managing destroyed
    this._writableState.destroyed = value;
  }
});

Writable.prototype.destroy = destroyImpl.destroy;
Writable.prototype._undestroy = destroyImpl.undestroy;
Writable.prototype._destroy = function (err, cb) {
  this.end();
  cb(err);
};
}).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("timers").setImmediate)

},{"./_stream_duplex":81,"./internal/streams/destroy":87,"./internal/streams/stream":88,"_process":79,"core-util-is":13,"inherits":47,"process-nextick-args":78,"safe-buffer":89,"timers":111,"util-deprecate":112}],86:[function(require,module,exports){
'use strict';

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var Buffer = require('safe-buffer').Buffer;
var util = require('util');

function copyBuffer(src, target, offset) {
  src.copy(target, offset);
}

module.exports = function () {
  function BufferList() {
    _classCallCheck(this, BufferList);

    this.head = null;
    this.tail = null;
    this.length = 0;
  }

  BufferList.prototype.push = function push(v) {
    var entry = { data: v, next: null };
    if (this.length > 0) this.tail.next = entry;else this.head = entry;
    this.tail = entry;
    ++this.length;
  };

  BufferList.prototype.unshift = function unshift(v) {
    var entry = { data: v, next: this.head };
    if (this.length === 0) this.tail = entry;
    this.head = entry;
    ++this.length;
  };

  BufferList.prototype.shift = function shift() {
    if (this.length === 0) return;
    var ret = this.head.data;
    if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
    --this.length;
    return ret;
  };

  BufferList.prototype.clear = function clear() {
    this.head = this.tail = null;
    this.length = 0;
  };

  BufferList.prototype.join = function join(s) {
    if (this.length === 0) return '';
    var p = this.head;
    var ret = '' + p.data;
    while (p = p.next) {
      ret += s + p.data;
    }return ret;
  };

  BufferList.prototype.concat = function concat(n) {
    if (this.length === 0) return Buffer.alloc(0);
    if (this.length === 1) return this.head.data;
    var ret = Buffer.allocUnsafe(n >>> 0);
    var p = this.head;
    var i = 0;
    while (p) {
      copyBuffer(p.data, ret, i);
      i += p.data.length;
      p = p.next;
    }
    return ret;
  };

  return BufferList;
}();

if (util && util.inspect && util.inspect.custom) {
  module.exports.prototype[util.inspect.custom] = function () {
    var obj = util.inspect({ length: this.length });
    return this.constructor.name + ' ' + obj;
  };
}
},{"safe-buffer":89,"util":9}],87:[function(require,module,exports){
'use strict';

/*<replacement>*/

var pna = require('process-nextick-args');
/*</replacement>*/

// undocumented cb() API, needed for core, not for public API
function destroy(err, cb) {
  var _this = this;

  var readableDestroyed = this._readableState && this._readableState.destroyed;
  var writableDestroyed = this._writableState && this._writableState.destroyed;

  if (readableDestroyed || writableDestroyed) {
    if (cb) {
      cb(err);
    } else if (err && (!this._writableState || !this._writableState.errorEmitted)) {
      pna.nextTick(emitErrorNT, this, err);
    }
    return this;
  }

  // we set destroyed to true before firing error callbacks in order
  // to make it re-entrance safe in case destroy() is called within callbacks

  if (this._readableState) {
    this._readableState.destroyed = true;
  }

  // if this is a duplex stream mark the writable part as destroyed as well
  if (this._writableState) {
    this._writableState.destroyed = true;
  }

  this._destroy(err || null, function (err) {
    if (!cb && err) {
      pna.nextTick(emitErrorNT, _this, err);
      if (_this._writableState) {
        _this._writableState.errorEmitted = true;
      }
    } else if (cb) {
      cb(err);
    }
  });

  return this;
}

function undestroy() {
  if (this._readableState) {
    this._readableState.destroyed = false;
    this._readableState.reading = false;
    this._readableState.ended = false;
    this._readableState.endEmitted = false;
  }

  if (this._writableState) {
    this._writableState.destroyed = false;
    this._writableState.ended = false;
    this._writableState.ending = false;
    this._writableState.finished = false;
    this._writableState.errorEmitted = false;
  }
}

function emitErrorNT(self, err) {
  self.emit('error', err);
}

module.exports = {
  destroy: destroy,
  undestroy: undestroy
};
},{"process-nextick-args":78}],88:[function(require,module,exports){
module.exports = require('events').EventEmitter;

},{"events":33}],89:[function(require,module,exports){
/* eslint-disable node/no-deprecated-api */
var buffer = require('buffer')
var Buffer = buffer.Buffer

// alternative to using Object.keys for old browsers
function copyProps (src, dst) {
  for (var key in src) {
    dst[key] = src[key]
  }
}
if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
  module.exports = buffer
} else {
  // Copy properties from require('buffer')
  copyProps(buffer, exports)
  exports.Buffer = SafeBuffer
}

function SafeBuffer (arg, encodingOrOffset, length) {
  return Buffer(arg, encodingOrOffset, length)
}

// Copy static methods from Buffer
copyProps(Buffer, SafeBuffer)

SafeBuffer.from = function (arg, encodingOrOffset, length) {
  if (typeof arg === 'number') {
    throw new TypeError('Argument must not be a number')
  }
  return Buffer(arg, encodingOrOffset, length)
}

SafeBuffer.alloc = function (size, fill, encoding) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  var buf = Buffer(size)
  if (fill !== undefined) {
    if (typeof encoding === 'string') {
      buf.fill(fill, encoding)
    } else {
      buf.fill(fill)
    }
  } else {
    buf.fill(0)
  }
  return buf
}

SafeBuffer.allocUnsafe = function (size) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  return Buffer(size)
}

SafeBuffer.allocUnsafeSlow = function (size) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  return buffer.SlowBuffer(size)
}

},{"buffer":10}],90:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';

/*<replacement>*/

var Buffer = require('safe-buffer').Buffer;
/*</replacement>*/

var isEncoding = Buffer.isEncoding || function (encoding) {
  encoding = '' + encoding;
  switch (encoding && encoding.toLowerCase()) {
    case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
      return true;
    default:
      return false;
  }
};

function _normalizeEncoding(enc) {
  if (!enc) return 'utf8';
  var retried;
  while (true) {
    switch (enc) {
      case 'utf8':
      case 'utf-8':
        return 'utf8';
      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return 'utf16le';
      case 'latin1':
      case 'binary':
        return 'latin1';
      case 'base64':
      case 'ascii':
      case 'hex':
        return enc;
      default:
        if (retried) return; // undefined
        enc = ('' + enc).toLowerCase();
        retried = true;
    }
  }
};

// Do not cache `Buffer.isEncoding` when checking encoding names as some
// modules monkey-patch it to support additional encodings
function normalizeEncoding(enc) {
  var nenc = _normalizeEncoding(enc);
  if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
  return nenc || enc;
}

// StringDecoder provides an interface for efficiently splitting a series of
// buffers into a series of JS strings without breaking apart multi-byte
// characters.
exports.StringDecoder = StringDecoder;
function StringDecoder(encoding) {
  this.encoding = normalizeEncoding(encoding);
  var nb;
  switch (this.encoding) {
    case 'utf16le':
      this.text = utf16Text;
      this.end = utf16End;
      nb = 4;
      break;
    case 'utf8':
      this.fillLast = utf8FillLast;
      nb = 4;
      break;
    case 'base64':
      this.text = base64Text;
      this.end = base64End;
      nb = 3;
      break;
    default:
      this.write = simpleWrite;
      this.end = simpleEnd;
      return;
  }
  this.lastNeed = 0;
  this.lastTotal = 0;
  this.lastChar = Buffer.allocUnsafe(nb);
}

StringDecoder.prototype.write = function (buf) {
  if (buf.length === 0) return '';
  var r;
  var i;
  if (this.lastNeed) {
    r = this.fillLast(buf);
    if (r === undefined) return '';
    i = this.lastNeed;
    this.lastNeed = 0;
  } else {
    i = 0;
  }
  if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
  return r || '';
};

StringDecoder.prototype.end = utf8End;

// Returns only complete characters in a Buffer
StringDecoder.prototype.text = utf8Text;

// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
StringDecoder.prototype.fillLast = function (buf) {
  if (this.lastNeed <= buf.length) {
    buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
  }
  buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
  this.lastNeed -= buf.length;
};

// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
// continuation byte. If an invalid byte is detected, -2 is returned.
function utf8CheckByte(byte) {
  if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
  return byte >> 6 === 0x02 ? -1 : -2;
}

// Checks at most 3 bytes at the end of a Buffer in order to detect an
// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
// needed to complete the UTF-8 character (if applicable) are returned.
function utf8CheckIncomplete(self, buf, i) {
  var j = buf.length - 1;
  if (j < i) return 0;
  var nb = utf8CheckByte(buf[j]);
  if (nb >= 0) {
    if (nb > 0) self.lastNeed = nb - 1;
    return nb;
  }
  if (--j < i || nb === -2) return 0;
  nb = utf8CheckByte(buf[j]);
  if (nb >= 0) {
    if (nb > 0) self.lastNeed = nb - 2;
    return nb;
  }
  if (--j < i || nb === -2) return 0;
  nb = utf8CheckByte(buf[j]);
  if (nb >= 0) {
    if (nb > 0) {
      if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
    }
    return nb;
  }
  return 0;
}

// Validates as many continuation bytes for a multi-byte UTF-8 character as
// needed or are available. If we see a non-continuation byte where we expect
// one, we "replace" the validated continuation bytes we've seen so far with
// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding
// behavior. The continuation byte check is included three times in the case
// where all of the continuation bytes for a character exist in the same buffer.
// It is also done this way as a slight performance increase instead of using a
// loop.
function utf8CheckExtraBytes(self, buf, p) {
  if ((buf[0] & 0xC0) !== 0x80) {
    self.lastNeed = 0;
    return '\ufffd';
  }
  if (self.lastNeed > 1 && buf.length > 1) {
    if ((buf[1] & 0xC0) !== 0x80) {
      self.lastNeed = 1;
      return '\ufffd';
    }
    if (self.lastNeed > 2 && buf.length > 2) {
      if ((buf[2] & 0xC0) !== 0x80) {
        self.lastNeed = 2;
        return '\ufffd';
      }
    }
  }
}

// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
function utf8FillLast(buf) {
  var p = this.lastTotal - this.lastNeed;
  var r = utf8CheckExtraBytes(this, buf, p);
  if (r !== undefined) return r;
  if (this.lastNeed <= buf.length) {
    buf.copy(this.lastChar, p, 0, this.lastNeed);
    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
  }
  buf.copy(this.lastChar, p, 0, buf.length);
  this.lastNeed -= buf.length;
}

// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
// partial character, the character's bytes are buffered until the required
// number of bytes are available.
function utf8Text(buf, i) {
  var total = utf8CheckIncomplete(this, buf, i);
  if (!this.lastNeed) return buf.toString('utf8', i);
  this.lastTotal = total;
  var end = buf.length - (total - this.lastNeed);
  buf.copy(this.lastChar, 0, end);
  return buf.toString('utf8', i, end);
}

// For UTF-8, a replacement character is added when ending on a partial
// character.
function utf8End(buf) {
  var r = buf && buf.length ? this.write(buf) : '';
  if (this.lastNeed) return r + '\ufffd';
  return r;
}

// UTF-16LE typically needs two bytes per character, but even if we have an even
// number of bytes available, we need to check if we end on a leading/high
// surrogate. In that case, we need to wait for the next two bytes in order to
// decode the last character properly.
function utf16Text(buf, i) {
  if ((buf.length - i) % 2 === 0) {
    var r = buf.toString('utf16le', i);
    if (r) {
      var c = r.charCodeAt(r.length - 1);
      if (c >= 0xD800 && c <= 0xDBFF) {
        this.lastNeed = 2;
        this.lastTotal = 4;
        this.lastChar[0] = buf[buf.length - 2];
        this.lastChar[1] = buf[buf.length - 1];
        return r.slice(0, -1);
      }
    }
    return r;
  }
  this.lastNeed = 1;
  this.lastTotal = 2;
  this.lastChar[0] = buf[buf.length - 1];
  return buf.toString('utf16le', i, buf.length - 1);
}

// For UTF-16LE we do not explicitly append special replacement characters if we
// end on a partial character, we simply let v8 handle that.
function utf16End(buf) {
  var r = buf && buf.length ? this.write(buf) : '';
  if (this.lastNeed) {
    var end = this.lastTotal - this.lastNeed;
    return r + this.lastChar.toString('utf16le', 0, end);
  }
  return r;
}

function base64Text(buf, i) {
  var n = (buf.length - i) % 3;
  if (n === 0) return buf.toString('base64', i);
  this.lastNeed = 3 - n;
  this.lastTotal = 3;
  if (n === 1) {
    this.lastChar[0] = buf[buf.length - 1];
  } else {
    this.lastChar[0] = buf[buf.length - 2];
    this.lastChar[1] = buf[buf.length - 1];
  }
  return buf.toString('base64', i, buf.length - n);
}

function base64End(buf) {
  var r = buf && buf.length ? this.write(buf) : '';
  if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
  return r;
}

// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
function simpleWrite(buf) {
  return buf.toString(this.encoding);
}

function simpleEnd(buf) {
  return buf && buf.length ? this.write(buf) : '';
}
},{"safe-buffer":89}],91:[function(require,module,exports){
module.exports = require('./readable').PassThrough

},{"./readable":92}],92:[function(require,module,exports){
exports = module.exports = require('./lib/_stream_readable.js');
exports.Stream = exports;
exports.Readable = exports;
exports.Writable = require('./lib/_stream_writable.js');
exports.Duplex = require('./lib/_stream_duplex.js');
exports.Transform = require('./lib/_stream_transform.js');
exports.PassThrough = require('./lib/_stream_passthrough.js');

},{"./lib/_stream_duplex.js":81,"./lib/_stream_passthrough.js":82,"./lib/_stream_readable.js":83,"./lib/_stream_transform.js":84,"./lib/_stream_writable.js":85}],93:[function(require,module,exports){
module.exports = require('./readable').Transform

},{"./readable":92}],94:[function(require,module,exports){
module.exports = require('./lib/_stream_writable.js');

},{"./lib/_stream_writable.js":85}],95:[function(require,module,exports){
'use strict';

var $Object = Object;
var $TypeError = TypeError;

module.exports = function flags() {
	if (this != null && this !== $Object(this)) {
		throw new $TypeError('RegExp.prototype.flags getter called on non-object');
	}
	var result = '';
	if (this.global) {
		result += 'g';
	}
	if (this.ignoreCase) {
		result += 'i';
	}
	if (this.multiline) {
		result += 'm';
	}
	if (this.dotAll) {
		result += 's';
	}
	if (this.unicode) {
		result += 'u';
	}
	if (this.sticky) {
		result += 'y';
	}
	return result;
};

},{}],96:[function(require,module,exports){
'use strict';

var define = require('define-properties');
var callBind = require('call-bind');

var implementation = require('./implementation');
var getPolyfill = require('./polyfill');
var shim = require('./shim');

var flagsBound = callBind(implementation);

define(flagsBound, {
	getPolyfill: getPolyfill,
	implementation: implementation,
	shim: shim
});

module.exports = flagsBound;

},{"./implementation":95,"./polyfill":97,"./shim":98,"call-bind":12,"define-properties":16}],97:[function(require,module,exports){
'use strict';

var implementation = require('./implementation');

var supportsDescriptors = require('define-properties').supportsDescriptors;
var $gOPD = Object.getOwnPropertyDescriptor;
var $TypeError = TypeError;

module.exports = function getPolyfill() {
	if (!supportsDescriptors) {
		throw new $TypeError('RegExp.prototype.flags requires a true ES5 environment that supports property descriptors');
	}
	if ((/a/mig).flags === 'gim') {
		var descriptor = $gOPD(RegExp.prototype, 'flags');
		if (descriptor && typeof descriptor.get === 'function' && typeof (/a/).dotAll === 'boolean') {
			return descriptor.get;
		}
	}
	return implementation;
};

},{"./implementation":95,"define-properties":16}],98:[function(require,module,exports){
'use strict';

var supportsDescriptors = require('define-properties').supportsDescriptors;
var getPolyfill = require('./polyfill');
var gOPD = Object.getOwnPropertyDescriptor;
var defineProperty = Object.defineProperty;
var TypeErr = TypeError;
var getProto = Object.getPrototypeOf;
var regex = /a/;

module.exports = function shimFlags() {
	if (!supportsDescriptors || !getProto) {
		throw new TypeErr('RegExp.prototype.flags requires a true ES5 environment that supports property descriptors');
	}
	var polyfill = getPolyfill();
	var proto = getProto(regex);
	var descriptor = gOPD(proto, 'flags');
	if (!descriptor || descriptor.get !== polyfill) {
		defineProperty(proto, 'flags', {
			configurable: true,
			enumerable: false,
			get: polyfill
		});
	}
	return polyfill;
};

},{"./polyfill":97,"define-properties":16}],99:[function(require,module,exports){
(function (process,setImmediate){(function (){
var through = require('through');
var nextTick = typeof setImmediate !== 'undefined'
    ? setImmediate
    : process.nextTick
;

module.exports = function (write, end) {
    var tr = through(write, end);
    tr.pause();
    var resume = tr.resume;
    var pause = tr.pause;
    var paused = false;
    
    tr.pause = function () {
        paused = true;
        return pause.apply(this, arguments);
    };
    
    tr.resume = function () {
        paused = false;
        return resume.apply(this, arguments);
    };
    
    nextTick(function () {
        if (!paused) tr.resume();
    });
    
    return tr;
};

}).call(this)}).call(this,require('_process'),require("timers").setImmediate)

},{"_process":79,"through":110,"timers":111}],100:[function(require,module,exports){
'use strict';

var GetIntrinsic = require('get-intrinsic');
var callBound = require('call-bind/callBound');
var inspect = require('object-inspect');

var $TypeError = GetIntrinsic('%TypeError%');
var $WeakMap = GetIntrinsic('%WeakMap%', true);
var $Map = GetIntrinsic('%Map%', true);

var $weakMapGet = callBound('WeakMap.prototype.get', true);
var $weakMapSet = callBound('WeakMap.prototype.set', true);
var $weakMapHas = callBound('WeakMap.prototype.has', true);
var $mapGet = callBound('Map.prototype.get', true);
var $mapSet = callBound('Map.prototype.set', true);
var $mapHas = callBound('Map.prototype.has', true);

/*
 * This function traverses the list returning the node corresponding to the
 * given key.
 *
 * That node is also moved to the head of the list, so that if it's accessed
 * again we don't need to traverse the whole list. By doing so, all the recently
 * used nodes can be accessed relatively quickly.
 */
var listGetNode = function (list, key) { // eslint-disable-line consistent-return
	for (var prev = list, curr; (curr = prev.next) !== null; prev = curr) {
		if (curr.key === key) {
			prev.next = curr.next;
			curr.next = list.next;
			list.next = curr; // eslint-disable-line no-param-reassign
			return curr;
		}
	}
};

var listGet = function (objects, key) {
	var node = listGetNode(objects, key);
	return node && node.value;
};
var listSet = function (objects, key, value) {
	var node = listGetNode(objects, key);
	if (node) {
		node.value = value;
	} else {
		// Prepend the new node to the beginning of the list
		objects.next = { // eslint-disable-line no-param-reassign
			key: key,
			next: objects.next,
			value: value
		};
	}
};
var listHas = function (objects, key) {
	return !!listGetNode(objects, key);
};

module.exports = function getSideChannel() {
	var $wm;
	var $m;
	var $o;
	var channel = {
		assert: function (key) {
			if (!channel.has(key)) {
				throw new $TypeError('Side channel does not contain ' + inspect(key));
			}
		},
		get: function (key) { // eslint-disable-line consistent-return
			if ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {
				if ($wm) {
					return $weakMapGet($wm, key);
				}
			} else if ($Map) {
				if ($m) {
					return $mapGet($m, key);
				}
			} else {
				if ($o) { // eslint-disable-line no-lonely-if
					return listGet($o, key);
				}
			}
		},
		has: function (key) {
			if ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {
				if ($wm) {
					return $weakMapHas($wm, key);
				}
			} else if ($Map) {
				if ($m) {
					return $mapHas($m, key);
				}
			} else {
				if ($o) { // eslint-disable-line no-lonely-if
					return listHas($o, key);
				}
			}
			return false;
		},
		set: function (key, value) {
			if ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {
				if (!$wm) {
					$wm = new $WeakMap();
				}
				$weakMapSet($wm, key, value);
			} else if ($Map) {
				if (!$m) {
					$m = new $Map();
				}
				$mapSet($m, key, value);
			} else {
				if (!$o) {
					/*
					 * Initialize the linked list as an empty node, so that we don't have
					 * to special-case handling of the first node: we can always refer to
					 * it as (previous node).next, instead of something like (list).head
					 */
					$o = { key: {}, next: null };
				}
				listSet($o, key, value);
			}
		}
	};
	return channel;
};

},{"call-bind/callBound":11,"get-intrinsic":39,"object-inspect":65}],101:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

module.exports = Stream;

var EE = require('events').EventEmitter;
var inherits = require('inherits');

inherits(Stream, EE);
Stream.Readable = require('readable-stream/readable.js');
Stream.Writable = require('readable-stream/writable.js');
Stream.Duplex = require('readable-stream/duplex.js');
Stream.Transform = require('readable-stream/transform.js');
Stream.PassThrough = require('readable-stream/passthrough.js');

// Backwards-compat with node 0.4.x
Stream.Stream = Stream;



// old-style streams.  Note that the pipe method (the only relevant
// part of this class) is overridden in the Readable class.

function Stream() {
  EE.call(this);
}

Stream.prototype.pipe = function(dest, options) {
  var source = this;

  function ondata(chunk) {
    if (dest.writable) {
      if (false === dest.write(chunk) && source.pause) {
        source.pause();
      }
    }
  }

  source.on('data', ondata);

  function ondrain() {
    if (source.readable && source.resume) {
      source.resume();
    }
  }

  dest.on('drain', ondrain);

  // If the 'end' option is not supplied, dest.end() will be called when
  // source gets the 'end' or 'close' events.  Only dest.end() once.
  if (!dest._isStdio && (!options || options.end !== false)) {
    source.on('end', onend);
    source.on('close', onclose);
  }

  var didOnEnd = false;
  function onend() {
    if (didOnEnd) return;
    didOnEnd = true;

    dest.end();
  }


  function onclose() {
    if (didOnEnd) return;
    didOnEnd = true;

    if (typeof dest.destroy === 'function') dest.destroy();
  }

  // don't leave dangling pipes when there are errors.
  function onerror(er) {
    cleanup();
    if (EE.listenerCount(this, 'error') === 0) {
      throw er; // Unhandled stream error in pipe.
    }
  }

  source.on('error', onerror);
  dest.on('error', onerror);

  // remove all the event listeners that were added.
  function cleanup() {
    source.removeListener('data', ondata);
    dest.removeListener('drain', ondrain);

    source.removeListener('end', onend);
    source.removeListener('close', onclose);

    source.removeListener('error', onerror);
    dest.removeListener('error', onerror);

    source.removeListener('end', cleanup);
    source.removeListener('close', cleanup);

    dest.removeListener('close', cleanup);
  }

  source.on('end', cleanup);
  source.on('close', cleanup);

  dest.on('close', cleanup);

  dest.emit('pipe', source);

  // Allow for unix-like usage: A.pipe(B).pipe(C)
  return dest;
};

},{"events":33,"inherits":47,"readable-stream/duplex.js":80,"readable-stream/passthrough.js":91,"readable-stream/readable.js":92,"readable-stream/transform.js":93,"readable-stream/writable.js":94}],102:[function(require,module,exports){
'use strict';

var RequireObjectCoercible = require('es-abstract/2021/RequireObjectCoercible');
var ToString = require('es-abstract/2021/ToString');
var callBound = require('call-bind/callBound');
var $replace = callBound('String.prototype.replace');

/* eslint-disable no-control-regex */
var leftWhitespace = /^[\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF]+/;
var rightWhitespace = /[\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF]+$/;
/* eslint-enable no-control-regex */

module.exports = function trim() {
	var S = ToString(RequireObjectCoercible(this));
	return $replace($replace(S, leftWhitespace, ''), rightWhitespace, '');
};

},{"call-bind/callBound":11,"es-abstract/2021/RequireObjectCoercible":19,"es-abstract/2021/ToString":23}],103:[function(require,module,exports){
'use strict';

var callBind = require('call-bind');
var define = require('define-properties');

var implementation = require('./implementation');
var getPolyfill = require('./polyfill');
var shim = require('./shim');

var boundTrim = callBind(getPolyfill());

define(boundTrim, {
	getPolyfill: getPolyfill,
	implementation: implementation,
	shim: shim
});

module.exports = boundTrim;

},{"./implementation":102,"./polyfill":104,"./shim":105,"call-bind":12,"define-properties":16}],104:[function(require,module,exports){
'use strict';

var implementation = require('./implementation');

var zeroWidthSpace = '\u200b';

module.exports = function getPolyfill() {
	if (String.prototype.trim && zeroWidthSpace.trim() === zeroWidthSpace) {
		return String.prototype.trim;
	}
	return implementation;
};

},{"./implementation":102}],105:[function(require,module,exports){
'use strict';

var define = require('define-properties');
var getPolyfill = require('./polyfill');

module.exports = function shimStringTrim() {
	var polyfill = getPolyfill();
	define(String.prototype, { trim: polyfill }, {
		trim: function testTrim() {
			return String.prototype.trim !== polyfill;
		}
	});
	return polyfill;
};

},{"./polyfill":104,"define-properties":16}],106:[function(require,module,exports){
(function (process){(function (){
'use strict';

var defined = require('defined');
var createDefaultStream = require('./lib/default_stream');
var Test = require('./lib/test');
var createResult = require('./lib/results');
var through = require('through');

var canEmitExit = typeof process !== 'undefined' && process
    && typeof process.on === 'function' && process.browser !== true;
var canExit = typeof process !== 'undefined' && process
    && typeof process.exit === 'function';

module.exports = (function () {
    var wait = false;
    var harness;
    var lazyLoad = function () {
        // eslint-disable-next-line no-invalid-this
        return getHarness().apply(this, arguments);
    };

    lazyLoad.wait = function () {
        wait = true;
    };

    lazyLoad.run = function () {
        var run = getHarness().run;

        if (run) { run(); }
    };

    lazyLoad.only = function () {
        return getHarness().only.apply(this, arguments);
    };

    lazyLoad.createStream = function (opts) {
        var options = opts || {};
        if (!harness) {
            var output = through();
            getHarness({ stream: output, objectMode: options.objectMode });
            return output;
        }
        return harness.createStream(options);
    };

    lazyLoad.onFinish = function () {
        return getHarness().onFinish.apply(this, arguments);
    };

    lazyLoad.onFailure = function () {
        return getHarness().onFailure.apply(this, arguments);
    };

    lazyLoad.getHarness = getHarness;

    return lazyLoad;

    function getHarness(opts) {
        if (!opts) { opts = {}; }
        opts.autoclose = !canEmitExit;
        if (!harness) { harness = createExitHarness(opts, wait); }
        return harness;
    }
}());

function createExitHarness(conf, wait) {
    var config = conf || {};
    var harness = createHarness({
        autoclose: defined(config.autoclose, false),
        noOnly: defined(conf.noOnly, defined(process.env.NODE_TAPE_NO_ONLY_TEST, false))
    });
    var running = false;
    var ended = false;

    if (wait) {
        harness.run = run;
    } else {
        run();
    }

    if (config.exit === false) { return harness; }
    if (!canEmitExit || !canExit) { return harness; }

    process.on('exit', function (code) {
        // let the process exit cleanly.
        if (typeof code === 'number' && code !== 0) {
            return;
        }

        if (!ended) {
            var only = harness._results._only;
            for (var i = 0; i < harness._tests.length; i++) {
                var t = harness._tests[i];
                if (!only || t === only) {
                    t._exit();
                }
            }
        }
        harness.close();

        process.removeAllListeners('exit'); // necessary for node v0.6
        process.exit(code || harness._exitCode); // eslint-disable-line no-process-exit
    });

    return harness;

    function run() {
        if (running) { return; }
        running = true;
        var stream = harness.createStream({ objectMode: config.objectMode });
        var es = stream.pipe(config.stream || createDefaultStream());
        if (canEmitExit) {
            // TODO: use `err` arg?
            // eslint-disable-next-line no-unused-vars
            es.on('error', function (err) { harness._exitCode = 1; });
        }
        stream.on('end', function () { ended = true; });
    }
}

module.exports.createHarness = createHarness;
module.exports.Test = Test;
module.exports.test = module.exports; // tap compat
module.exports.test.skip = Test.skip;

function createHarness(conf_) {
    var results = createResult();
    if (!conf_ || conf_.autoclose !== false) {
        results.once('done', function () { results.close(); });
    }

    var test = function (name, conf, cb) {
        var t = new Test(name, conf, cb);
        test._tests.push(t);

        (function inspectCode(st) {
            st.on('test', function sub(st_) {
                inspectCode(st_);
            });
            st.on('result', function (r) {
                if (!r.todo && !r.ok && typeof r !== 'string') { test._exitCode = 1; }
            });
        }(t));

        results.push(t);
        return t;
    };
    test._results = results;

    test._tests = [];

    test.createStream = function (opts) {
        return results.createStream(opts);
    };

    test.onFinish = function (cb) {
        results.on('done', cb);
    };

    test.onFailure = function (cb) {
        results.on('fail', cb);
    };

    var only = false;
    test.only = function () {
        if (only) { throw new Error('there can only be one only test'); }
        if (conf_.noOnly) { throw new Error('`only` tests are prohibited'); }
        only = true;
        var t = test.apply(null, arguments);
        results.only(t);
        return t;
    };
    test._exitCode = 0;

    test.close = function () { results.close(); };

    return test;
}

}).call(this)}).call(this,require('_process'))

},{"./lib/default_stream":107,"./lib/results":108,"./lib/test":109,"_process":79,"defined":17,"through":110}],107:[function(require,module,exports){
(function (process){(function (){
'use strict';

var through = require('through');
var fs = require('fs');

module.exports = function () {
    var line = '';
    var stream = through(write, flush);
    return stream;

    function write(buf) {
        for (var i = 0; i < buf.length; i++) {
            var c = typeof buf === 'string'
                ? buf.charAt(i)
                : String.fromCharCode(buf[i]);
            if (c === '\n') {
                flush();
            } else {
                line += c;
            }
        }
    }

    function flush() {
        if (fs.writeSync && (/^win/).test(process.platform)) {
            try {
                fs.writeSync(1, line + '\n');
            } catch (e) {
                stream.emit('error', e);
            }
        } else {
            try {
                console.log(line); // eslint-disable-line no-console
            } catch (e) {
                stream.emit('error', e);
            }
        }
        line = '';
    }
};

}).call(this)}).call(this,require('_process'))

},{"_process":79,"fs":9,"through":110}],108:[function(require,module,exports){
(function (process,setImmediate){(function (){
'use strict';

var defined = require('defined');
var EventEmitter = require('events').EventEmitter;
var inherits = require('inherits');
var through = require('through');
var resumer = require('resumer');
var inspect = require('object-inspect');
var callBound = require('call-bind/callBound');
var has = require('has');
var regexpTest = callBound('RegExp.prototype.test');
var $split = callBound('String.prototype.split');
var $replace = callBound('String.prototype.replace');
var $shift = callBound('Array.prototype.shift');
var $push = callBound('Array.prototype.push');
var yamlIndicators = /:|-|\?/;
var nextTick = typeof setImmediate !== 'undefined'
    ? setImmediate
    : process.nextTick;
module.exports = Results;
inherits(Results, EventEmitter);

function coalesceWhiteSpaces(str) {
    return $replace(String(str), /\s+/g, ' ');
}

function Results() {
    if (!(this instanceof Results)) { return new Results(); }
    this.count = 0;
    this.fail = 0;
    this.pass = 0;
    this.todo = 0;
    this._stream = through();
    this.tests = [];
    this._only = null;
    this._isRunning = false;
}

Results.prototype.createStream = function (opts) {
    if (!opts) { opts = {}; }
    var self = this;
    var output;
    var testId = 0;
    if (opts.objectMode) {
        output = through();
        self.on('_push', function ontest(t, extra) {
            if (!extra) { extra = {}; }
            var id = testId++;
            t.once('prerun', function () {
                var row = {
                    type: 'test',
                    name: t.name,
                    id: id,
                    skip: t._skip,
                    todo: t._todo
                };
                if (has(extra, 'parent')) {
                    row.parent = extra.parent;
                }
                output.queue(row);
            });
            t.on('test', function (st) {
                ontest(st, { parent: id });
            });
            t.on('result', function (res) {
                if (res && typeof res === 'object') {
                    res.test = id;
                    res.type = 'assert';
                }
                output.queue(res);
            });
            t.on('end', function () {
                output.queue({ type: 'end', test: id });
            });
        });
        self.on('done', function () { output.queue(null); });
    } else {
        output = resumer();
        output.queue('TAP version 13\n');
        self._stream.pipe(output);
    }

    if (!this._isRunning) {
        this._isRunning = true;
        nextTick(function next() {
            var t;
            while (t = getNextTest(self)) {
                t.run();
                if (!t.ended) {
                    t.once('end', function () { nextTick(next); });
                    return;
                }
            }
            self.emit('done');
        });
    }

    return output;
};

Results.prototype.push = function (t) {
    var self = this;
    $push(self.tests, t);
    self._watch(t);
    self.emit('_push', t);
};

Results.prototype.only = function (t) {
    this._only = t;
};

Results.prototype._watch = function (t) {
    var self = this;
    var write = function (s) { self._stream.queue(s); };
    t.once('prerun', function () {
        var premsg = '';
        if (t._skip) {
            premsg = 'SKIP ';
        } else if (t._todo) {
            premsg = 'TODO ';
        }
        write('# ' + premsg + coalesceWhiteSpaces(t.name) + '\n');
    });

    t.on('result', function (res) {
        if (typeof res === 'string') {
            write('# ' + res + '\n');
            return;
        }
        write(encodeResult(res, self.count + 1));
        self.count++;

        if (res.ok || res.todo) {
            self.pass++;
        } else {
            self.fail++;
            self.emit('fail');
        }
    });

    t.on('test', function (st) { self._watch(st); });
};

Results.prototype.close = function () {
    var self = this;
    if (self.closed) { self._stream.emit('error', new Error('ALREADY CLOSED')); }
    self.closed = true;
    var write = function (s) { self._stream.queue(s); };

    write('\n1..' + self.count + '\n');
    write('# tests ' + self.count + '\n');
    write('# pass  ' + (self.pass + self.todo) + '\n');
    if (self.todo) { write('# todo  ' + self.todo + '\n'); }
    if (self.fail) {
        write('# fail  ' + self.fail + '\n');
    } else {
        write('\n# ok\n');
    }

    self._stream.queue(null);
};

function encodeResult(res, count) {
    var output = '';
    output += (res.ok ? 'ok ' : 'not ok ') + count;
    output += res.name ? ' ' + coalesceWhiteSpaces(res.name) : '';

    if (res.skip) {
        output += ' # SKIP' + (typeof res.skip === 'string' ? ' ' + coalesceWhiteSpaces(res.skip) : '');
    } else if (res.todo) {
        output += ' # TODO' + (typeof res.todo === 'string' ? ' ' + coalesceWhiteSpaces(res.todo) : '');
    }

    output += '\n';
    if (res.ok) { return output; }

    var outer = '  ';
    var inner = outer + '  ';
    output += outer + '---\n';
    output += inner + 'operator: ' + res.operator + '\n';

    if (has(res, 'expected') || has(res, 'actual')) {
        var ex = inspect(res.expected, { depth: res.objectPrintDepth });
        var ac = inspect(res.actual, { depth: res.objectPrintDepth });

        if (Math.max(ex.length, ac.length) > 65 || invalidYaml(ex) || invalidYaml(ac)) {
            output += inner + 'expected: |-\n' + inner + '  ' + ex + '\n';
            output += inner + 'actual: |-\n' + inner + '  ' + ac + '\n';
        } else {
            output += inner + 'expected: ' + ex + '\n';
            output += inner + 'actual:   ' + ac + '\n';
        }
    }
    if (res.at) {
        output += inner + 'at: ' + res.at + '\n';
    }

    var actualStack = res.actual && (typeof res.actual === 'object' || typeof res.actual === 'function') ? res.actual.stack : undefined;
    var errorStack = res.error && res.error.stack;
    var stack = defined(actualStack, errorStack);
    if (stack) {
        var lines = $split(String(stack), '\n');
        output += inner + 'stack: |-\n';
        for (var i = 0; i < lines.length; i++) {
            output += inner + '  ' + lines[i] + '\n';
        }
    }

    output += outer + '...\n';
    return output;
}

function getNextTest(results) {
    if (!results._only) {
        return $shift(results.tests);
    }

    do {
        var t = $shift(results.tests);
        if (t && results._only === t) {
            return t;
        }
    } while (results.tests.length !== 0);

    return void undefined;
}

function invalidYaml(str) {
    return regexpTest(yamlIndicators, str);
}

}).call(this)}).call(this,require('_process'),require("timers").setImmediate)

},{"_process":79,"call-bind/callBound":11,"defined":17,"events":33,"has":45,"inherits":47,"object-inspect":65,"resumer":99,"through":110,"timers":111}],109:[function(require,module,exports){
(function (process,setImmediate,__dirname){(function (){
'use strict';

var deepEqual = require('deep-equal');
var defined = require('defined');
var path = require('path');
var inherits = require('inherits');
var EventEmitter = require('events').EventEmitter;
var has = require('has');
var isRegExp = require('is-regex');
var trim = require('string.prototype.trim');
var callBound = require('call-bind/callBound');
var forEach = require('for-each');
var inspect = require('object-inspect');
var is = require('object-is');
var objectKeys = require('object-keys');
var every = require('array.prototype.every');

var isEnumerable = callBound('Object.prototype.propertyIsEnumerable');
var toLowerCase = callBound('String.prototype.toLowerCase');
var isProto = callBound('Object.prototype.isPrototypeOf');
var $exec = callBound('RegExp.prototype.exec');
var objectToString = callBound('Object.prototype.toString');
var $split = callBound('String.prototype.split');
var $replace = callBound('String.prototype.replace');
var $strSlice = callBound('String.prototype.slice');
var $push = callBound('Array.prototype.push');
var $shift = callBound('Array.prototype.shift');

module.exports = Test;

var nextTick = typeof setImmediate !== 'undefined'
    ? setImmediate
    : process.nextTick;
var safeSetTimeout = setTimeout;
var safeClearTimeout = clearTimeout;

inherits(Test, EventEmitter);

// eslint-disable-next-line no-unused-vars
var getTestArgs = function (name_, opts_, cb_) {
    var name = '(anonymous)';
    var opts = {};
    var cb;

    for (var i = 0; i < arguments.length; i++) {
        var arg = arguments[i];
        var t = typeof arg;
        if (t === 'string') {
            name = arg;
        } else if (t === 'object') {
            opts = arg || opts;
        } else if (t === 'function') {
            cb = arg;
        }
    }
    return {
        name: name,
        opts: opts,
        cb: cb
    };
};

function Test(name_, opts_, cb_) {
    if (!(this instanceof Test)) {
        return new Test(name_, opts_, cb_);
    }

    var args = getTestArgs(name_, opts_, cb_);

    this.readable = true;
    this.name = args.name || '(anonymous)';
    this.assertCount = 0;
    this.pendingCount = 0;
    this._skip = args.opts.skip || false;
    this._todo = args.opts.todo || false;
    this._timeout = args.opts.timeout;
    this._plan = undefined;
    this._cb = args.cb;
    this._progeny = [];
    this._teardown = [];
    this._ok = true;
    var depthEnvVar = process.env.NODE_TAPE_OBJECT_PRINT_DEPTH;
    if (args.opts.objectPrintDepth) {
        this._objectPrintDepth = args.opts.objectPrintDepth;
    } else if (depthEnvVar) {
        if (toLowerCase(depthEnvVar) === 'infinity') {
            this._objectPrintDepth = Infinity;
        } else {
            this._objectPrintDepth = depthEnvVar;
        }
    } else {
        this._objectPrintDepth = 5;
    }

    for (var prop in this) {
        this[prop] = (function bind(self, val) {
            if (typeof val === 'function') {
                return function bound() {
                    return val.apply(self, arguments);
                };
            }
            return val;
        }(this, this[prop]));
    }
}

Test.prototype.run = function run() {
    this.emit('prerun');
    if (!this._cb || this._skip) {
        this._end();
        return;
    }
    if (this._timeout != null) {
        this.timeoutAfter(this._timeout);
    }

    var callbackReturn = this._cb(this);

    if (
        typeof Promise === 'function'
        && callbackReturn
        && typeof callbackReturn.then === 'function'
    ) {
        var self = this;
        Promise.resolve(callbackReturn).then(function onResolve() {
            if (!self.calledEnd) {
                self.end();
            }
        })['catch'](function onError(err) {
            if (err instanceof Error || objectToString(err) === '[object Error]') {
                self.ifError(err);
            } else {
                self.fail(err);
            }
            self.end();
        });
        return;
    }

    this.emit('run');
};

Test.prototype.test = function test(name, opts, cb) {
    var self = this;
    var t = new Test(name, opts, cb);
    $push(this._progeny, t);
    this.pendingCount++;
    this.emit('test', t);
    t.on('prerun', function () {
        self.assertCount++;
    });

    if (!self._pendingAsserts()) {
        nextTick(function () {
            self._end();
        });
    }

    nextTick(function () {
        if (!self._plan && self.pendingCount == self._progeny.length) {
            self._end();
        }
    });
};

Test.prototype.comment = function comment(msg) {
    var that = this;
    forEach($split(trim(msg), '\n'), function (aMsg) {
        that.emit('result', $replace(trim(aMsg), /^#\s*/, ''));
    });
};

Test.prototype.plan = function plan(n) {
    this._plan = n;
    this.emit('plan', n);
};

Test.prototype.timeoutAfter = function timeoutAfter(ms) {
    if (!ms) { throw new Error('timeoutAfter requires a timespan'); }
    var self = this;
    var timeout = safeSetTimeout(function () {
        self.fail(self.name + ' timed out after ' + ms + 'ms');
        self.end();
    }, ms);
    this.once('end', function () {
        safeClearTimeout(timeout);
    });
};

Test.prototype.end = function end(err) {
    if (arguments.length >= 1 && !!err) {
        this.ifError(err);
    }

    if (this.calledEnd) {
        this.fail('.end() already called');
    }
    this.calledEnd = true;
    this._end();
};

Test.prototype.teardown = function teardown(fn) {
    if (typeof fn !== 'function') {
        this.fail('teardown: ' + inspect(fn) + ' is not a function');
    } else {
        this._teardown.push(fn);
    }
};

Test.prototype._end = function _end(err) {
    var self = this;

    if (!this._cb && !this._todo && !this._skip) {
        this.fail('# TODO ' + this.name);
    }

    if (this._progeny.length) {
        var t = $shift(this._progeny);
        t.on('end', function () { self._end(); });
        t.run();
        return;
    }

    function next() {
        if (self._teardown.length === 0) {
            completeEnd();
            return;
        }
        var fn = self._teardown.shift();
        var res;
        try {
            res = fn();
        } catch (e) {
            self.fail(e);
        }
        if (res && typeof res.then === 'function') {
            res.then(next, function (_err) {
                // TODO: wth?
                err = err || _err;
            });
        } else {
            next();
        }
    }

    next();

    function completeEnd() {
        if (!self.ended) { self.emit('end'); }
        var pendingAsserts = self._pendingAsserts();
        if (!self._planError && self._plan !== undefined && pendingAsserts) {
            self._planError = true;
            self.fail('plan != count', {
                expected: self._plan,
                actual: self.assertCount
            });
        }
        self.ended = true;
    }
};

Test.prototype._exit = function _exit() {
    if (this._plan !== undefined && !this._planError && this.assertCount !== this._plan) {
        this._planError = true;
        this.fail('plan != count', {
            expected: this._plan,
            actual: this.assertCount,
            exiting: true
        });
    } else if (!this.ended) {
        this.fail('test exited without ending: ' + this.name, {
            exiting: true
        });
    }
};

Test.prototype._pendingAsserts = function _pendingAsserts() {
    if (this._plan === undefined) {
        return 1;
    }
    return this._plan - (this._progeny.length + this.assertCount);
};

Test.prototype._assert = function assert(ok, opts) {
    var self = this;
    var extra = opts.extra || {};

    ok = !!ok || !!extra.skip;

    var name = defined(extra.message, opts.message, '(unnamed assert)');
    if (this.calledEnd && opts.operator !== 'fail') {
        this.fail('.end() already called: ' + name);
        return;
    }

    var res = {
        id: self.assertCount++,
        ok: ok,
        skip: defined(extra.skip, opts.skip),
        todo: defined(extra.todo, opts.todo, self._todo),
        name: name,
        operator: defined(extra.operator, opts.operator),
        objectPrintDepth: self._objectPrintDepth
    };
    if (has(opts, 'actual') || has(extra, 'actual')) {
        res.actual = defined(extra.actual, opts.actual);
    }
    if (has(opts, 'expected') || has(extra, 'expected')) {
        res.expected = defined(extra.expected, opts.expected);
    }
    this._ok = !!(this._ok && ok);

    if (!ok && !res.todo) {
        res.error = defined(extra.error, opts.error, new Error(res.name));
    }

    if (!ok) {
        var e = new Error('exception');
        var err = $split(e.stack || '', '\n');
        var dir = __dirname + path.sep;

        for (var i = 0; i < err.length; i++) {
            /*
                Stack trace lines may resemble one of the following. We need
                to correctly extract a function name (if any) and path / line
                number for each line.

                    at myFunction (/path/to/file.js:123:45)
                    at myFunction (/path/to/file.other-ext:123:45)
                    at myFunction (/path to/file.js:123:45)
                    at myFunction (C:\path\to\file.js:123:45)
                    at myFunction (/path/to/file.js:123)
                    at Test.<anonymous> (/path/to/file.js:123:45)
                    at Test.bound [as run] (/path/to/file.js:123:45)
                    at /path/to/file.js:123:45

                Regex has three parts. First is non-capturing group for 'at '
                (plus anything preceding it).

                    /^(?:[^\s]*\s*\bat\s+)/

                Second captures function call description (optional). This is
                not necessarily a valid JS function name, but just what the
                stack trace is using to represent a function call. It may look
                like `<anonymous>` or 'Test.bound [as run]'.

                For our purposes, we assume that, if there is a function
                name, it's everything leading up to the first open
                parentheses (trimmed) before our pathname.

                    /(?:(.*)\s+\()?/

                Last part captures file path plus line no (and optional
                column no).

                    /((?:\/|[a-zA-Z]:\\)[^:\)]+:(\d+)(?::(\d+))?)\)?/
            */
            var re = /^(?:[^\s]*\s*\bat\s+)(?:(.*)\s+\()?((?:\/|[a-zA-Z]:\\)[^:)]+:(\d+)(?::(\d+))?)\)?$/;
            var lineWithTokens = $replace($replace(err[i], process.cwd(), '/$CWD'), __dirname, '/$TEST');
            var m = re.exec(lineWithTokens);

            if (!m) {
                continue;
            }

            var callDescription = m[1] || '<anonymous>';
            var filePath = $replace($replace(m[2], '/$CWD', process.cwd()), '/$TEST', __dirname);

            if ($strSlice(filePath, 0, dir.length) === dir) {
                continue;
            }

            // Function call description may not (just) be a function name.
            // Try to extract function name by looking at first "word" only.
            res.functionName = $split(callDescription, /\s+/)[0];
            res.file = filePath;
            res.line = Number(m[3]);
            if (m[4]) { res.column = Number(m[4]); }

            res.at = callDescription + ' (' + filePath + ')';
            break;
        }
    }

    self.emit('result', res);

    var pendingAsserts = self._pendingAsserts();
    if (!pendingAsserts) {
        if (extra.exiting) {
            self._end();
        } else {
            nextTick(function () {
                self._end();
            });
        }
    }

    if (!self._planError && pendingAsserts < 0) {
        self._planError = true;
        self.fail('plan != count', {
            expected: self._plan,
            actual: self._plan - pendingAsserts
        });
    }
};

Test.prototype.fail = function fail(msg, extra) {
    this._assert(false, {
        message: msg,
        operator: 'fail',
        extra: extra
    });
};

Test.prototype.pass = function pass(msg, extra) {
    this._assert(true, {
        message: msg,
        operator: 'pass',
        extra: extra
    });
};

Test.prototype.skip = function skip(msg, extra) {
    this._assert(true, {
        message: msg,
        operator: 'skip',
        skip: true,
        extra: extra
    });
};

var testAssert = function assert(value, msg, extra) {
    this._assert(value, {
        message: defined(msg, 'should be truthy'),
        operator: 'ok',
        expected: true,
        actual: value,
        extra: extra
    });
};
Test.prototype.ok
= Test.prototype['true']
= Test.prototype.assert
= testAssert;

function notOK(value, msg, extra) {
    this._assert(!value, {
        message: defined(msg, 'should be falsy'),
        operator: 'notOk',
        expected: false,
        actual: value,
        extra: extra
    });
}
Test.prototype.notOk
= Test.prototype['false']
= Test.prototype.notok
= notOK;

function error(err, msg, extra) {
    this._assert(!err, {
        message: defined(msg, String(err)),
        operator: 'error',
        error: err,
        extra: extra
    });
}
Test.prototype.error
= Test.prototype.ifError
= Test.prototype.ifErr
= Test.prototype.iferror
= error;

function strictEqual(a, b, msg, extra) {
    if (arguments.length < 2) {
        throw new TypeError('two arguments must be provided to compare');
    }
    this._assert(is(a, b), {
        message: defined(msg, 'should be strictly equal'),
        operator: 'equal',
        actual: a,
        expected: b,
        extra: extra
    });
}
Test.prototype.equal
= Test.prototype.equals
= Test.prototype.isEqual
= Test.prototype.strictEqual
= Test.prototype.strictEquals
= Test.prototype.is
= strictEqual;

function notStrictEqual(a, b, msg, extra) {
    if (arguments.length < 2) {
        throw new TypeError('two arguments must be provided to compare');
    }
    this._assert(!is(a, b), {
        message: defined(msg, 'should not be strictly equal'),
        operator: 'notEqual',
        actual: a,
        expected: b,
        extra: extra
    });
}

Test.prototype.notEqual
= Test.prototype.notEquals
= Test.prototype.isNotEqual
= Test.prototype.doesNotEqual
= Test.prototype.isInequal
= Test.prototype.notStrictEqual
= Test.prototype.notStrictEquals
= Test.prototype.isNot
= Test.prototype.not
= notStrictEqual;

function looseEqual(a, b, msg, extra) {
    if (arguments.length < 2) {
        throw new TypeError('two arguments must be provided to compare');
    }
    this._assert(a == b, {
        message: defined(msg, 'should be loosely equal'),
        operator: 'looseEqual',
        actual: a,
        expected: b,
        extra: extra
    });
}

Test.prototype.looseEqual
= Test.prototype.looseEquals
= looseEqual;

function notLooseEqual(a, b, msg, extra) {
    if (arguments.length < 2) {
        throw new TypeError('two arguments must be provided to compare');
    }
    this._assert(a != b, {
        message: defined(msg, 'should not be loosely equal'),
        operator: 'notLooseEqual',
        actual: a,
        expected: b,
        extra: extra
    });
}
Test.prototype.notLooseEqual
= Test.prototype.notLooseEquals
= notLooseEqual;

function tapeDeepEqual(a, b, msg, extra) {
    if (arguments.length < 2) {
        throw new TypeError('two arguments must be provided to compare');
    }
    this._assert(deepEqual(a, b, { strict: true }), {
        message: defined(msg, 'should be deeply equivalent'),
        operator: 'deepEqual',
        actual: a,
        expected: b,
        extra: extra
    });
}
Test.prototype.deepEqual
= Test.prototype.deepEquals
= Test.prototype.isEquivalent
= Test.prototype.same
= tapeDeepEqual;

function notDeepEqual(a, b, msg, extra) {
    if (arguments.length < 2) {
        throw new TypeError('two arguments must be provided to compare');
    }
    this._assert(!deepEqual(a, b, { strict: true }), {
        message: defined(msg, 'should not be deeply equivalent'),
        operator: 'notDeepEqual',
        actual: a,
        expected: b,
        extra: extra
    });
}
Test.prototype.notDeepEqual
= Test.prototype.notDeepEquals
= Test.prototype.notEquivalent
= Test.prototype.notDeeply
= Test.prototype.notSame
= Test.prototype.isNotDeepEqual
= Test.prototype.isNotDeeply
= Test.prototype.isNotEquivalent
= Test.prototype.isInequivalent
= notDeepEqual;

function deepLooseEqual(a, b, msg, extra) {
    if (arguments.length < 2) {
        throw new TypeError('two arguments must be provided to compare');
    }
    this._assert(deepEqual(a, b), {
        message: defined(msg, 'should be loosely deeply equivalent'),
        operator: 'deepLooseEqual',
        actual: a,
        expected: b,
        extra: extra
    });
}

Test.prototype.deepLooseEqual
= deepLooseEqual;

function notDeepLooseEqual(a, b, msg, extra) {
    if (arguments.length < 2) {
        throw new TypeError('two arguments must be provided to compare');
    }
    this._assert(!deepEqual(a, b), {
        message: defined(msg, 'should not be loosely deeply equivalent'),
        operator: 'notDeepLooseEqual',
        actual: a,
        expected: b,
        extra: extra
    });
}
Test.prototype.notDeepLooseEqual
= notDeepLooseEqual;

Test.prototype['throws'] = function (fn, expected, msg, extra) {
    if (typeof expected === 'string') {
        msg = expected;
        expected = undefined;
    }

    var caught;

    try {
        fn();
    } catch (err) {
        caught = { error: err };
        if (Object(err) === err && (!isEnumerable(err, 'message') || !has(err, 'message'))) {
            var message = err.message;
            delete err.message;
            err.message = message;
        }
    }

    var passed = caught;

    if (caught) {
        if (typeof expected === 'string' && caught.error && caught.error.message === expected) {
            throw new TypeError('The "error/message" argument is ambiguous. The error message ' + inspect(expected) + ' is identical to the message.');
        }
        if (typeof expected === 'function') {
            if (typeof expected.prototype !== 'undefined' && caught.error instanceof expected) {
                passed = true;
            } else if (isProto(Error, expected)) {
                passed = false;
            } else {
                passed = expected.call({}, caught.error) === true;
            }
        } else if (isRegExp(expected)) {
            passed = $exec(expected, caught.error) !== null;
            expected = inspect(expected);
        } else if (expected && typeof expected === 'object') { // Handle validation objects.
            var keys = objectKeys(expected);
            // Special handle errors to make sure the name and the message are compared as well.
            if (expected instanceof Error) {
                $push(keys, 'name', 'message');
            } else if (keys.length === 0) {
                throw new TypeError('`throws` validation object must not be empty');
            }
            passed = every(keys, function (key) {
                if (typeof caught.error[key] === 'string' && isRegExp(expected[key]) && $exec(expected[key], caught.error[key]) !== null) {
                    return true;
                }
                if (key in caught.error && deepEqual(caught.error[key], expected[key], { strict: true })) {
                    return true;
                }
                return false;
            });
        }
    }

    this._assert(!!passed, {
        message: defined(msg, 'should throw'),
        operator: 'throws',
        actual: caught && caught.error,
        expected: expected,
        error: !passed && caught && caught.error,
        extra: extra
    });
};

Test.prototype.doesNotThrow = function doesNotThrow(fn, expected, msg, extra) {
    if (typeof expected === 'string') {
        msg = expected;
        expected = undefined;
    }
    var caught;
    try {
        fn();
    } catch (err) {
        caught = { error: err };
    }
    this._assert(!caught, {
        message: defined(msg, 'should not throw'),
        operator: 'throws',
        actual: caught && caught.error,
        expected: expected,
        error: caught && caught.error,
        extra: extra
    });
};

Test.prototype.match = function match(string, regexp, msg, extra) {
    if (!isRegExp(regexp)) {
        this._assert(false, {
            message: defined(msg, 'The "regexp" argument must be an instance of RegExp. Received type ' + typeof regexp + ' (' + inspect(regexp) + ')'),
            operator: 'match',
            actual: objectToString(regexp),
            expected: '[object RegExp]',
            extra: extra
        });
    } else if (typeof string !== 'string') {
        this._assert(false, {
            message: defined(msg, 'The "string" argument must be of type string. Received type ' + typeof string + ' (' + inspect(string) + ')'),
            operator: 'match',
            actual: string === null ? null : typeof string,
            expected: 'string',
            extra: extra
        });
    } else {
        var matches = $exec(regexp, string) !== null;
        var message = defined(
            msg,
            'The input ' + (matches ? 'matched' : 'did not match') + ' the regular expression ' + inspect(regexp) + '. Input: ' + inspect(string)
        );
        this._assert(matches, {
            message: message,
            operator: 'match',
            actual: string,
            expected: regexp,
            extra: extra
        });
    }
};

Test.prototype.doesNotMatch = function doesNotMatch(string, regexp, msg, extra) {
    if (!isRegExp(regexp)) {
        this._assert(false, {
            message: defined(msg, 'The "regexp" argument must be an instance of RegExp. Received type ' + typeof regexp + ' (' + inspect(regexp) + ')'),
            operator: 'doesNotMatch',
            actual: objectToString(regexp),
            expected: '[object RegExp]',
            extra: extra
        });
    } else if (typeof string !== 'string') {
        this._assert(false, {
            message: defined(msg, 'The "string" argument must be of type string. Received type ' + typeof string + ' (' + inspect(string) + ')'),
            operator: 'doesNotMatch',
            actual: string === null ? null : typeof string,
            expected: 'string',
            extra: extra
        });
    } else {
        var matches = $exec(regexp, string) !== null;
        var message = defined(
            msg,
            'The input ' + (matches ? 'was expected to not match' : 'did not match') + ' the regular expression ' + inspect(regexp) + '. Input: ' + inspect(string)
        );
        this._assert(!matches, {
            message: message,
            operator: 'doesNotMatch',
            actual: string,
            expected: regexp,
            extra: extra
        });
    }
};

// eslint-disable-next-line no-unused-vars
Test.skip = function skip(name_, _opts, _cb) {
    var args = getTestArgs.apply(null, arguments);
    args.opts.skip = true;
    return new Test(args.name, args.opts, args.cb);
};

// vim: set softtabstop=4 shiftwidth=4:

}).call(this)}).call(this,require('_process'),require("timers").setImmediate,"/node_modules/tape/lib")

},{"_process":79,"array.prototype.every":4,"call-bind/callBound":11,"deep-equal":14,"defined":17,"events":33,"for-each":34,"has":45,"inherits":47,"is-regex":55,"object-inspect":65,"object-is":67,"object-keys":71,"path":77,"string.prototype.trim":103,"timers":111}],110:[function(require,module,exports){
(function (process){(function (){
var Stream = require('stream')

// through
//
// a stream that does nothing but re-emit the input.
// useful for aggregating a series of changing but not ending streams into one stream)

exports = module.exports = through
through.through = through

//create a readable writable stream.

function through (write, end, opts) {
  write = write || function (data) { this.queue(data) }
  end = end || function () { this.queue(null) }

  var ended = false, destroyed = false, buffer = [], _ended = false
  var stream = new Stream()
  stream.readable = stream.writable = true
  stream.paused = false

//  stream.autoPause   = !(opts && opts.autoPause   === false)
  stream.autoDestroy = !(opts && opts.autoDestroy === false)

  stream.write = function (data) {
    write.call(this, data)
    return !stream.paused
  }

  function drain() {
    while(buffer.length && !stream.paused) {
      var data = buffer.shift()
      if(null === data)
        return stream.emit('end')
      else
        stream.emit('data', data)
    }
  }

  stream.queue = stream.push = function (data) {
//    console.error(ended)
    if(_ended) return stream
    if(data === null) _ended = true
    buffer.push(data)
    drain()
    return stream
  }

  //this will be registered as the first 'end' listener
  //must call destroy next tick, to make sure we're after any
  //stream piped from here.
  //this is only a problem if end is not emitted synchronously.
  //a nicer way to do this is to make sure this is the last listener for 'end'

  stream.on('end', function () {
    stream.readable = false
    if(!stream.writable && stream.autoDestroy)
      process.nextTick(function () {
        stream.destroy()
      })
  })

  function _end () {
    stream.writable = false
    end.call(stream)
    if(!stream.readable && stream.autoDestroy)
      stream.destroy()
  }

  stream.end = function (data) {
    if(ended) return
    ended = true
    if(arguments.length) stream.write(data)
    _end() // will emit or queue
    return stream
  }

  stream.destroy = function () {
    if(destroyed) return
    destroyed = true
    ended = true
    buffer.length = 0
    stream.writable = stream.readable = false
    stream.emit('close')
    return stream
  }

  stream.pause = function () {
    if(stream.paused) return
    stream.paused = true
    return stream
  }

  stream.resume = function () {
    if(stream.paused) {
      stream.paused = false
      stream.emit('resume')
    }
    drain()
    //may have become paused again,
    //as drain emits 'data'.
    if(!stream.paused)
      stream.emit('drain')
    return stream
  }
  return stream
}


}).call(this)}).call(this,require('_process'))

},{"_process":79,"stream":101}],111:[function(require,module,exports){
(function (setImmediate,clearImmediate){(function (){
var nextTick = require('process/browser.js').nextTick;
var apply = Function.prototype.apply;
var slice = Array.prototype.slice;
var immediateIds = {};
var nextImmediateId = 0;

// DOM APIs, for completeness

exports.setTimeout = function() {
  return new Timeout(apply.call(setTimeout, window, arguments), clearTimeout);
};
exports.setInterval = function() {
  return new Timeout(apply.call(setInterval, window, arguments), clearInterval);
};
exports.clearTimeout =
exports.clearInterval = function(timeout) { timeout.close(); };

function Timeout(id, clearFn) {
  this._id = id;
  this._clearFn = clearFn;
}
Timeout.prototype.unref = Timeout.prototype.ref = function() {};
Timeout.prototype.close = function() {
  this._clearFn.call(window, this._id);
};

// Does not start the time, just sets up the members needed.
exports.enroll = function(item, msecs) {
  clearTimeout(item._idleTimeoutId);
  item._idleTimeout = msecs;
};

exports.unenroll = function(item) {
  clearTimeout(item._idleTimeoutId);
  item._idleTimeout = -1;
};

exports._unrefActive = exports.active = function(item) {
  clearTimeout(item._idleTimeoutId);

  var msecs = item._idleTimeout;
  if (msecs >= 0) {
    item._idleTimeoutId = setTimeout(function onTimeout() {
      if (item._onTimeout)
        item._onTimeout();
    }, msecs);
  }
};

// That's not how node.js implements it but the exposed api is the same.
exports.setImmediate = typeof setImmediate === "function" ? setImmediate : function(fn) {
  var id = nextImmediateId++;
  var args = arguments.length < 2 ? false : slice.call(arguments, 1);

  immediateIds[id] = true;

  nextTick(function onNextTick() {
    if (immediateIds[id]) {
      // fn.call() is faster so we optimize for the common use-case
      // @see http://jsperf.com/call-apply-segu
      if (args) {
        fn.apply(null, args);
      } else {
        fn.call(null);
      }
      // Prevent ids from leaking
      exports.clearImmediate(id);
    }
  });

  return id;
};

exports.clearImmediate = typeof clearImmediate === "function" ? clearImmediate : function(id) {
  delete immediateIds[id];
};
}).call(this)}).call(this,require("timers").setImmediate,require("timers").clearImmediate)

},{"process/browser.js":79,"timers":111}],112:[function(require,module,exports){
(function (global){(function (){

/**
 * Module exports.
 */

module.exports = deprecate;

/**
 * Mark that a method should not be used.
 * Returns a modified function which warns once by default.
 *
 * If `localStorage.noDeprecation = true` is set, then it is a no-op.
 *
 * If `localStorage.throwDeprecation = true` is set, then deprecated functions
 * will throw an Error when invoked.
 *
 * If `localStorage.traceDeprecation = true` is set, then deprecated functions
 * will invoke `console.trace()` instead of `console.error()`.
 *
 * @param {Function} fn - the function to deprecate
 * @param {String} msg - the string to print to the console when `fn` is invoked
 * @returns {Function} a new "deprecated" version of `fn`
 * @api public
 */

function deprecate (fn, msg) {
  if (config('noDeprecation')) {
    return fn;
  }

  var warned = false;
  function deprecated() {
    if (!warned) {
      if (config('throwDeprecation')) {
        throw new Error(msg);
      } else if (config('traceDeprecation')) {
        console.trace(msg);
      } else {
        console.warn(msg);
      }
      warned = true;
    }
    return fn.apply(this, arguments);
  }

  return deprecated;
}

/**
 * Checks `localStorage` for boolean values for the given `name`.
 *
 * @param {String} name
 * @returns {Boolean}
 * @api private
 */

function config (name) {
  // accessing global.localStorage can trigger a DOMException in sandboxed iframes
  try {
    if (!global.localStorage) return false;
  } catch (_) {
    return false;
  }
  var val = global.localStorage[name];
  if (null == val) return false;
  return String(val).toLowerCase() === 'true';
}

}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})

},{}],113:[function(require,module,exports){
'use strict';

var isString = require('is-string');
var isNumber = require('is-number-object');
var isBoolean = require('is-boolean-object');
var isSymbol = require('is-symbol');
var isBigInt = require('is-bigint');

// eslint-disable-next-line consistent-return
module.exports = function whichBoxedPrimitive(value) {
	// eslint-disable-next-line eqeqeq
	if (value == null || (typeof value !== 'object' && typeof value !== 'function')) {
		return null;
	}
	if (isString(value)) {
		return 'String';
	}
	if (isNumber(value)) {
		return 'Number';
	}
	if (isBoolean(value)) {
		return 'Boolean';
	}
	if (isSymbol(value)) {
		return 'Symbol';
	}
	if (isBigInt(value)) {
		return 'BigInt';
	}
};

},{"is-bigint":49,"is-boolean-object":50,"is-number-object":54,"is-string":57,"is-symbol":58}],114:[function(require,module,exports){
'use strict';

var isMap = require('is-map');
var isSet = require('is-set');
var isWeakMap = require('is-weakmap');
var isWeakSet = require('is-weakset');

module.exports = function whichCollection(value) {
	if (value && typeof value === 'object') {
		if (isMap(value)) {
			return 'Map';
		}
		if (isSet(value)) {
			return 'Set';
		}
		if (isWeakMap(value)) {
			return 'WeakMap';
		}
		if (isWeakSet(value)) {
			return 'WeakSet';
		}
	}
	return false;
};

},{"is-map":53,"is-set":56,"is-weakmap":60,"is-weakset":61}],115:[function(require,module,exports){
(function (global){(function (){
'use strict';

var forEach = require('foreach');
var availableTypedArrays = require('available-typed-arrays');
var callBound = require('call-bind/callBound');

var $toString = callBound('Object.prototype.toString');
var hasToStringTag = require('has-tostringtag/shams')();

var g = typeof globalThis === 'undefined' ? global : globalThis;
var typedArrays = availableTypedArrays();

var $slice = callBound('String.prototype.slice');
var toStrTags = {};
var gOPD = require('es-abstract/helpers/getOwnPropertyDescriptor');
var getPrototypeOf = Object.getPrototypeOf; // require('getprototypeof');
if (hasToStringTag && gOPD && getPrototypeOf) {
	forEach(typedArrays, function (typedArray) {
		if (typeof g[typedArray] === 'function') {
			var arr = new g[typedArray]();
			if (Symbol.toStringTag in arr) {
				var proto = getPrototypeOf(arr);
				var descriptor = gOPD(proto, Symbol.toStringTag);
				if (!descriptor) {
					var superProto = getPrototypeOf(proto);
					descriptor = gOPD(superProto, Symbol.toStringTag);
				}
				toStrTags[typedArray] = descriptor.get;
			}
		}
	});
}

var tryTypedArrays = function tryAllTypedArrays(value) {
	var foundName = false;
	forEach(toStrTags, function (getter, typedArray) {
		if (!foundName) {
			try {
				var name = getter.call(value);
				if (name === typedArray) {
					foundName = name;
				}
			} catch (e) {}
		}
	});
	return foundName;
};

var isTypedArray = require('is-typed-array');

module.exports = function whichTypedArray(value) {
	if (!isTypedArray(value)) { return false; }
	if (!hasToStringTag || !(Symbol.toStringTag in value)) { return $slice($toString(value), 8, -1); }
	return tryTypedArrays(value);
};

}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})

},{"available-typed-arrays":7,"call-bind/callBound":11,"es-abstract/helpers/getOwnPropertyDescriptor":26,"foreach":35,"has-tostringtag/shams":44,"is-typed-array":59}],116:[function(require,module,exports){
arguments[4][75][0].apply(exports,arguments)
},{"./implementation":1,"dup":75}],117:[function(require,module,exports){
arguments[4][76][0].apply(exports,arguments)
},{"./polyfill":116,"define-properties":16,"dup":76}],118:[function(require,module,exports){
'use strict';

var assign = require('../');
var test = require('tape');
var runTests = require('./tests');

test('as a function', function (t) {
	t.test('bad array/this value', function (st) {
		st['throws'](function () { assign(undefined); }, TypeError, 'undefined is not an object');
		st['throws'](function () { assign(null); }, TypeError, 'null is not an object');
		st.end();
	});

	runTests(assign, t);

	t.end();
});

},{"../":2,"./tests":119,"tape":106}],119:[function(require,module,exports){
'use strict';

var hasSymbols = require('has-symbols/shams')();
var forEach = require('for-each');
var has = require('has');
var mockProperty = require('mock-property');

module.exports = function (assign, t) {
	t.test('error cases', function (st) {
		st['throws'](function () { assign(null); }, TypeError, 'target must be an object');
		st['throws'](function () { assign(undefined); }, TypeError, 'target must be an object');
		st['throws'](function () { assign(null, {}); }, TypeError, 'target must be an object');
		st['throws'](function () { assign(undefined, {}); }, TypeError, 'target must be an object');
		st.end();
	});

	t.test('non-object target, no sources', function (st) {
		var bool = assign(true);
		st.equal(typeof bool, 'object', 'bool is object');
		st.equal(Boolean.prototype.valueOf.call(bool), true, 'bool coerces to `true`');

		var number = assign(1);
		st.equal(typeof number, 'object', 'number is object');
		st.equal(Number.prototype.valueOf.call(number), 1, 'number coerces to `1`');

		var string = assign('1');
		st.equal(typeof string, 'object', 'number is object');
		st.equal(String.prototype.valueOf.call(string), '1', 'number coerces to `"1"`');

		st.end();
	});

	t.test('non-object target, with sources', function (st) {
		var signal = {};

		st.test('boolean', function (st2) {
			var bool = assign(true, { a: signal });
			st2.equal(typeof bool, 'object', 'bool is object');
			st2.equal(Boolean.prototype.valueOf.call(bool), true, 'bool coerces to `true`');
			st2.equal(bool.a, signal, 'source properties copied');
			st2.end();
		});

		st.test('number', function (st2) {
			var number = assign(1, { a: signal });
			st2.equal(typeof number, 'object', 'number is object');
			st2.equal(Number.prototype.valueOf.call(number), 1, 'number coerces to `1`');
			st2.equal(number.a, signal, 'source properties copied');
			st2.end();
		});

		st.test('string', function (st2) {
			var string = assign('1', { a: signal });
			st2.equal(typeof string, 'object', 'number is object');
			st2.equal(String.prototype.valueOf.call(string), '1', 'number coerces to `"1"`');
			st2.equal(string.a, signal, 'source properties copied');
			st2.end();
		});

		st.end();
	});

	t.test('non-object sources', function (st) {
		st.deepEqual(assign({ a: 1 }, null, { b: 2 }), { a: 1, b: 2 }, 'ignores null source');
		st.deepEqual(assign({ a: 1 }, { b: 2 }, undefined), { a: 1, b: 2 }, 'ignores undefined source');
		st.end();
	});

	t.test('returns the modified target object', function (st) {
		var target = {};
		var returned = assign(target, { a: 1 });
		st.equal(returned, target, 'returned object is the same reference as the target object');
		st.end();
	});

	t.test('has the right length', function (st) {
		st.equal(assign.length, 2, 'length is 2 => 2 required arguments');
		st.end();
	});

	t.test('merge two objects', function (st) {
		var target = { a: 1 };
		var returned = assign(target, { b: 2 });
		st.deepEqual(returned, { a: 1, b: 2 }, 'returned object has properties from both');
		st.end();
	});

	t.test('works with functions', function (st) {
		var target = function () {};
		target.a = 1;
		var returned = assign(target, { b: 2 });
		st.equal(target, returned, 'returned object is target');
		st.equal(returned.a, 1);
		st.equal(returned.b, 2);
		st.end();
	});

	t.test('works with primitives', function (st) {
		var target = 2;
		var source = { b: 42 };
		var returned = assign(target, source);
		st.equal(Object.prototype.toString.call(returned), '[object Number]', 'returned is object form of number primitive');
		st.equal(Number(returned), target, 'returned and target have same valueOf');
		st.equal(returned.b, source.b);
		st.end();
	});

	/* globals window */
	t.test('works with window.location', { skip: typeof window === 'undefined' }, function (st) {
		var target = {};
		assign(target, window.location);
		for (var prop in window.location) {
			if (has(window.location, prop)) {
				st.deepEqual(target[prop], window.location[prop], prop + ' is copied');
			}
		}
		st.end();
	});

	t.test('merge N objects', function (st) {
		var target = { a: 1 };
		var source1 = { b: 2 };
		var source2 = { c: 3 };
		var returned = assign(target, source1, source2);
		st.deepEqual(returned, { a: 1, b: 2, c: 3 }, 'returned object has properties from all sources');
		st.end();
	});

	t.test('only iterates over own keys', function (st) {
		var Foo = function () {};
		Foo.prototype.bar = true;
		var foo = new Foo();
		foo.baz = true;
		var target = { a: 1 };
		var returned = assign(target, foo);
		st.equal(returned, target, 'returned object is the same reference as the target object');
		st.deepEqual(target, { a: 1, baz: true }, 'returned object has only own properties from both');
		st.end();
	});

	t.test('includes enumerable symbols, after keys', { skip: !hasSymbols }, function (st) {
		var visited = [];
		var obj = {};
		Object.defineProperty(obj, 'a', { enumerable: true, get: function () { visited.push('a'); return 42; } });
		var symbol = Symbol('enumerable');
		Object.defineProperty(obj, symbol, {
			enumerable: true,
			get: function () { visited.push(symbol); return Infinity; }
		});
		var nonEnumSymbol = Symbol('non-enumerable');
		Object.defineProperty(obj, nonEnumSymbol, {
			enumerable: false,
			get: function () { visited.push(nonEnumSymbol); return -Infinity; }
		});
		var target = assign({}, obj);
		st.deepEqual(visited, ['a', symbol], 'key is visited first, then symbol');
		st.equal(target.a, 42, 'target.a is 42');
		st.equal(target[symbol], Infinity, 'target[symbol] is Infinity');
		st.notEqual(target[nonEnumSymbol], -Infinity, 'target[nonEnumSymbol] is not -Infinity');
		st.end();
	});

	t.test('does not fail when symbols are not present', { skip: !Object.isFrozen || Object.isFrozen(Object) }, function (st) {
		st.teardown(mockProperty(Object, 'getOwnPropertySymbols', { 'delete': true }));

		var visited = [];
		var obj = {};
		Object.defineProperty(obj, 'a', { enumerable: true, get: function () { visited.push('a'); return 42; } });
		var keys = ['a'];
		if (hasSymbols) {
			var symbol = Symbol('sym');
			Object.defineProperty(obj, symbol, {
				enumerable: true,
				get: function () { visited.push(symbol); return Infinity; }
			});
			keys.push(symbol);
		}
		var target = assign({}, obj);
		st.deepEqual(visited, keys, 'assign visits expected keys');
		st.equal(target.a, 42, 'target.a is 42');

		if (hasSymbols) {
			st.equal(target[symbol], Infinity);
		}
		st.end();
	});

	t.test('preserves correct property enumeration order', function (st) {
		var str = 'abcdefghijklmnopqrst';
		var letters = {};
		forEach(str.split(''), function (letter) {
			letters[letter] = letter;
		});

		var n = 5;
		st.comment('run the next test ' + n + ' times');
		var object = assign({}, letters);
		var actual = '';
		for (var k in object) {
			actual += k;
		}
		for (var i = 0; i < n; ++i) {
			st.equal(actual, str, 'property enumeration order should be followed');
		}
		st.end();
	});

	t.test('checks enumerability and existence, in case of modification during [[Get]]', { skip: !Object.defineProperty }, function (st) {
		var targetBvalue = {};
		var targetCvalue = {};
		var target = { b: targetBvalue, c: targetCvalue };
		var source = {};
		Object.defineProperty(source, 'a', {
			enumerable: true,
			get: function () {
				delete this.b;
				Object.defineProperty(this, 'c', { enumerable: false });
				return 'a';
			}
		});
		var sourceBvalue = {};
		var sourceCvalue = {};
		source.b = sourceBvalue;
		source.c = sourceCvalue;
		var result = assign(target, source);
		st.equal(result, target, 'sanity check: result is === target');
		st.equal(result.b, targetBvalue, 'target key not overwritten by deleted source key');
		st.equal(result.c, targetCvalue, 'target key not overwritten by non-enumerable source key');

		st.end();
	});
};

},{"for-each":34,"has":45,"has-symbols/shams":43,"mock-property":63}]},{},[118])
//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbIm5vZGVfbW9kdWxlcy9icm93c2VyLXBhY2svX3ByZWx1ZGUuanMiLCJpbXBsZW1lbnRhdGlvbi5qcyIsImluZGV4LmpzIiwibm9kZV9t … [Строка слишком длинная. Вы можете скачать файл]
</script></body></html>