original_string: protected function filterData($data): array
      {
          if (empty($this->getFields())) {
              return $data;
          }
          return array_intersect_key($data, array_flip($this->getFields()));
      }
code: protected function filterData($data): array
      {
          if (empty($this->getFields())) {
              return $data;
          }
          return array_intersect_key($data, array_flip($this->getFields()));
      }
code_tokens: protected function filterData ( $ data ) : array { if ( empty ( $ this -> getFields ( ) ) ) { return $ data ; } return array_intersect_key ( $ data , array_flip ( $ this -> getFields ( ) ) ) ; }
docstring: Filter input Fields
  
  @param array $data Request
  
  @return array
docstring_tokens: Filter input Fields