code: public function childIndex(FilterRequest $filters, $id, $relation)
      {
          $id = $this->getRealId($id);
          
          $resource = $this->repository->getChilds($id, $relation, $filters);
          
          if (! $resource || count($resource) < 1) {
              // return $this->notFound();
          }
          
          return $this->success($resource);
      }
docs: Display a listing of the childs resource.
  
  @return \Illuminate\Http\Response