如何在Laravel API资源中包含JSON列属性

Schema::create('users', function (Blueprint $table) {
    $table->id();
    $table->json('meta');
    $table->timestamps();
});

php artisan make:resource UserResource

use Illuminate\Http\Resources\Json\JsonResource;

class UserResource extends JsonResource
{
    public function toArray($request)
    {
        return array_merge(parent::toArray($request), [
            'meta' => $this->meta,
        ]);
    }
}

use App\Http\Resources\UserResource;
use App\Models\User;

class UserController extends Controller
{
    public function show($id)
    {
        $user = User::find($id);
        return new UserResource($user);
    }
}