cython

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def myfunction(x, y=2):
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    a = x - y
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    return a + x * y
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def _helper(a):
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    return a + 1
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class A:
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    def __init__(self, b=0):
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        self.a = 3
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        self.b = b
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    def foo(self, x):
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        print(x + _helper(1.0))
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