human
I wrote the below code

    commands = {}
    docs = {}
    for (attr, value) in attrs.items():
        if getattr(value, '__command__', False):
            commands[attr] = value
            docs[attr] = (getattr(value, '__doc__', None) or ('perform    the    %s    command' % attr)).strip()
    attrs['__commands__'] = commands
    attrs['__docs__'] = docs
    def run(self, command, *args, **kwargs):
        return self.__commands__[command](self, *args, **kwargs)
    attrs.setdefault('run', run)
    return type(name, bases, attrs)

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

def meta_command(name, bases, attrs):