18.1.0
Move test helpers into an utils module
Extract strategies into proper module (#365)
Support `from typing import ClassVar` (#367)
Check type of set_run_validators' arg
Allow optional conversion (#173)
Eliminate __init__ overhead for frozen dict classes. (#336)
return "..." rather than raising RecursionError for repr() on a cyclic object
Use isort so we can stop thinking about imports (#297)
Refactor class creation (#272)
isort update