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

    alt_name = (alt_name or alternative.__name__)
    klass = (klass or FutureWarning)
    def wrapper(*args, **kwargs):
        warnings.warn(('%s    is    deprecated.    Use    %s    instead' % (name, alt_name)), klass, stacklevel=stacklevel)
        return alternative(*args, **kwargs)
    return wrapper

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

def deprecate(name, alternative, alt_name=None, klass=None, stacklevel=2):