Reports usages of @classmethod or @staticmethod decorators
in methods outside a class.
Example:
class State(object):
@classmethod
def my_state(cls, name):
cls.name = name
@classmethod
def change_state(self):
pass
The change_state method should not use the @classmethod decorator or it should be
moved to the State class declaration.
If you apply the Remove decorator action, the code changes to:
class State(object):
@classmethod
def my_state(cls, name):
cls.name = name
def change_state(self):
pass