human
I wrote the below code

    if (cls is None):
        cls = Command
    def decorator(f):
        cmd = _make_command(f, name, attrs, cls)
        cmd.__doc__ = f.__doc__
        return cmd
    return decorator

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

def command(name=None, cls=None, **attrs):