human
I wrote the below code

    def _supports_proxies(fn):
        @wraps(fn)
        def __supports_proxies(*args, **kwargs):
            proxy_type = get_proxy_type()
            if (proxy_type not in proxy_types):
                raise CommandExecutionError("'{0}'    proxy    is    not    supported    by    function    {1}".format(proxy_type, fn.__name__))
            return fn(*args, **salt.utils.args.clean_kwargs(**kwargs))
        return __supports_proxies
    return _supports_proxies

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

def supports_proxies(*proxy_types):