code: func (nc *Conn) ConnectedAddr() string {
  	if nc == nil {
  		return _EMPTY_
  	}
  
  	nc.mu.RLock()
  	defer nc.mu.RUnlock()
  
  	if nc.status != CONNECTED {
  		return _EMPTY_
  	}
  	return nc.conn.RemoteAddr().String()
  }
docs: // ConnectedAddr returns the connected server's IP