func (c *Client) connectUDPClient(from, to *net.UDPAddr) *net.UDPConn {  
    log.Println("start connecting")  
  
    conn, err := net.DialUDP("udp", from, to)  
    if err != nil {  
       log.Fatalln("UDP connect fail", err)  
    }  
    log.Println("Connect success")  
    return conn  
}

type Response struct {  
    responce.JsonData  
    Geocodes []struct {  
       FormattedAddress string `json:"formatted_address"`  
       Country          string `json:"country"`  
       Province         string `json:"province"`  
       Citycode         string `json:"citycode"`  
       City             string `json:"city"`  
       District         string `json:"district"`  
       Township         []any  `json:"township"`  
       Neighborhood     struct {  
          Name []any `json:"name"`  
          Type []any `json:"type"`  
       } `json:"neighborhood"`  
       Building struct {  
          Name []any `json:"name"`  
          Type []any `json:"type"`  
       } `json:"building"`  
       Adcode   string `json:"adcode"`  
       Street   string `json:"street"`  
       Number   string `json:"number"`  
       Location string `json:"location"`  
       Level    string `json:"level"`  
    } `json:"geocodes"`  
}