How about add getIncrementing() for HasUlid trait ?

[liaosankai]

Add getIncrementing for HasUlid trait

...
    public function getIncrementing()
    {
        return false;
    }
...

It make Model more clear

use Illuminate\Database\Eloquent\Model;
use Rorecek\Ulid\HasUlid;

class Item extends Model
{
  use HasUlid;
}

[rorecek]

Perfect idea! Thank you very much.