original_string: public function clear()
      {
          $this->response = null;
  
          if ($this->parser) {
              $this->parser->clear();
          }
  
          $this->parser = null;
      }
code: public function clear()
      {
          $this->response = null;
  
          if ($this->parser) {
              $this->parser->clear();
          }
  
          $this->parser = null;
      }
code_tokens: public function clear ( ) { $ this -> response = null ; if ( $ this -> parser ) { $ this -> parser -> clear ( ) ; } $ this -> parser = null ; }
docstring: Clean up memory
docstring_tokens: Clean up memory