code: func (r *PEXReactor) ReachedMaxMsgCountForPeer(addr string) bool {
  	return r.msgCountByPeer.Get(addr).(uint16) >= r.maxMsgCountByPeer
  }
docs: // ReachedMaxMsgCountForPeer returns true if we received too many
  // messages from peer with address `addr`.
  // NOTE: assumes the value in the CMap is non-nil