return self.call(http.Method.post, 'rooms/$room_id/join', '')

	return self.join_as('', room_id)
}
pub fn (mut self Actor) join_as(user_id string, room_id string) ?(map[string]json2.Any, int) {
	user_part := if user_id.len > 0 { '?user_id=$user_id' } else { '' }
	return self.call(http.Method.post, 'rooms/$room_id/join$user_part', '')

		// register user and try again

		// register user, join room, and try again

		self.join_as(user_id, room.id) or { return '' }