<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def request_persona_state(self, steam_ids, state_flags=863):
 """Request persona state data :param steam_ids: list of steam ids :type steam_ids: :class:`list` :param state_flags: client state flags :type state_flags: :class:`.EClientPersonaStateFlag` """

        m = MsgProto(EMsg.ClientRequestFriendData)
        m.body.persona_state_requested = state_flags
        m.body.friends.extend(steam_ids)
        self.send(m)