def METHOD_NAME(self, channel_id=None):
    channel_id = channel_id or self.channel_id
    web_socket_url = "{}/{}/{}".format(
        self.EVENTS_BASE_URL, self.account_sid, channel_id
    )
    self._make_policy(web_socket_url, "GET", True)
    self._make_policy(web_socket_url, "POST", True)