code: func (p *Peer) LastPingTime() time.Time {
  	p.statsMtx.RLock()
  	lastPingTime := p.lastPingTime
  	p.statsMtx.RUnlock()
  
  	return lastPingTime
  }
docs: // LastPingTime returns the last ping time of the remote peer.
  //
  // This function is safe for concurrent access.