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

    def wrapper(self, *args, **kwargs):
        old = self._saved_copy()
        result = func(self, *args, **kwargs)
        self._notify_owners(old)
        return result
    wrapper.__doc__ = ('Container    method    ``%s``    instrumented    to    notify    property    owners' % func.__name__)
    return wrapper

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

def notify_owner(func):