original_string: public function delete(string $name): self
      {
          if (isset($this->data[$name])) {
              unset($this->data[$name]);
          }
          return $this;
      }
code: public function delete(string $name): self
      {
          if (isset($this->data[$name])) {
              unset($this->data[$name]);
          }
          return $this;
      }
code_tokens: public function delete ( string $ name ) : self { if ( isset ( $ this -> data [ $ name ] ) ) { unset ( $ this -> data [ $ name ] ) ; } return $ this ; }
docstring: Deletes a cookie if exists.
  
  @param string $name The name of the cookie to delete.
  @return self Returns a reference to itself.
docstring_tokens: Deletes a cookie if exists .