/**
  * @param  string  $order_by
  * @param  string  $sort
  * @param  bool    $withPermissions
  * @return mixed
  */
 public function getAllRoles($order_by = 'sort', $sort = 'asc', $withPermissions = false)
 {
     if ($withPermissions) {
         return Role::with('permissions')->orderBy($order_by, $sort)->get();
     }
     return Role::orderBy($order_by, $sort)->get();
 }