function __construct()
 {
     parent::__construct();
     $this->data["type"] = "customizedcast";
     $this->data["alias_type"] = NULL;
 }
 function __construct()
 {
     parent::__construct();
     $this->data["type"] = "unicast";
     $this->data["device_tokens"] = NULL;
 }
 function __construct()
 {
     parent::__construct();
     $this->data["type"] = "broadcast";
 }
 function __construct()
 {
     parent::__construct();
     $this->data["type"] = "groupcast";
     $this->data["filter"] = NULL;
 }
 function __construct()
 {
     parent::__construct();
     $this->data["type"] = "filecast";
     $this->data["file_id"] = NULL;
 }