consider-iterating-dictionary / C0201#
Consider iterating the dictionary directly instead of calling .keys()
Emitted when the keys of a dictionary are iterated through the ``.keys()`` method or when ``.keys()`` is used for a membership check. It is enough to iterate through the dictionary itself, ``for key in dictionary``. For membership checks, ``if key in dictionary`` is faster.
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Created by the refactoring checker.