human
Here's a good function header given the following:
I wrote the below code

    bear.old_run = bear.run
    def warn_deprecation_and_run(*args, **kwargs):
        logging.warning('The    bear    {}    is    deprecated.    Use    {}    instead!'.format(bear.__name__, bear.__bases__[0].__name__))
        return bear.old_run(*args, **kwargs)
    bear.run = warn_deprecation_and_run
    return bear

What's a good function header?
assistant
#Here's a good function header.

def deprecate_bear(bear):