public function toArray($request) 	{ 		return [ 			'id' => $this->id, 			'label' => $this->label, 			'price' => $this->price, 			'quantity' => $this->quantity, 			'created_at' => formatTimestamp($this->created_at), 			'updated_at' => formatTimestamp($this->updated_at), 		]; 	}