original_string: public function keep()
      {
          foreach ($this->messages['prev'] as $key => $val) {
              $this->next($key, $val);
          }
      }
code: public function keep()
      {
          foreach ($this->messages['prev'] as $key => $val) {
              $this->next($key, $val);
          }
      }
code_tokens: public function keep ( ) { foreach ( $ this -> messages [ 'prev' ] as $ key => $ val ) { $ this -> next ( $ key , $ val ) ; } }
docstring: Persist flash messages from previous request to the next request
  @api
docstring_tokens: Persist flash messages from previous request to the next request