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

    @wraps(fn)
    def decorator(*args, **kwargs):
        _jwt_required((realm or app.config['JWT_DEFAULT_REALM']))
        return fn(*args, **kwargs)
    return decorator

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

def jwt_required(fn, realm=None):