public function __construct()
 {
     parent::__construct();
     $this->data['payload'] = static::$androidPayload;
 }
 function __construct()
 {
     parent::__construct();
     $this->data["payload"] = $this->androidPayload;
 }
 public function __construct()
 {
     parent::__construct();
     $this->data['payload'] = $this->iosPayload;
 }