Routing and PHP7 types

Hello,

I have a controller with the following parameter using PHP7 type:

class UsersController extends Controller
{
        public function show(int... $ids)
        {
            return User::whereIn('id', $ids)->get();
        }
}

And a route like that

$group->get('users/{id}', 'UsersController@show');

When I call my Api with one id everything is ok but when I try with multiple parameters (ex. /users/1,2,3) I got an error: "A non well formed numeric value encountered"

Is it possible to use PHP7 types with Lumen? I would like to avoid using a string and explode it to retrieve my ids.

Thanks a lot!