code: func (c *Client) GetPeerInfoAsync() FutureGetPeerInfoResult {
  	cmd := btcjson.NewGetPeerInfoCmd()
  	return c.sendCmd(cmd)
  }
docs: // GetPeerInfoAsync returns an instance of a type that can be used to get the
  // result of the RPC at some future time by invoking the Receive function on the
  // returned instance.
  //
  // See GetPeerInfo for the blocking version and more details.