original_string: public function totalRow($display = null)
      {
          $this->grid->addTotalRow($this->name, $display);
  
          return $this;
      }
code: public function totalRow($display = null)
      {
          $this->grid->addTotalRow($this->name, $display);
  
          return $this;
      }
code_tokens: public function totalRow ( $ display = null ) { $ this -> grid -> addTotalRow ( $ this -> name , $ display ) ; return $ this ; }
docstring: Add column to total-row.
  
  @param null $display
  
  @return $this
docstring_tokens: Add column to total - row .