Inheritance: extends EntityTransformer
 public function show(Request $request)
 {
     $account = Auth::user()->account;
     $updatedAt = $request->updated_at ? date('Y-m-d H:i:s', $request->updated_at) : false;
     $transformer = new AccountTransformer(null, $request->serializer);
     $account->load($transformer->getDefaultIncludes());
     $account = $this->createItem($account, $transformer, 'account');
     return $this->response($account);
 }