id: no-notimplemented-in-bool
valid:
  - |
    def __eq__(self, other):
        return NotImplemented
  - |
    if x is None:
        pass
  - |
    assert x is None
  - 'bool(value)'
invalid:
  - |
    if NotImplemented:
        do_thing()
  - 'assert NotImplemented'
  - 'bool(NotImplemented)'
  - |
    if not NotImplemented:
        pass