original_string: public function get_tour() {
          if ($this->tour === null) {
              $this->tour = tour::instance($this->tourid);
          }
          return $this->tour;
      }
code: public function get_tour() {
          if ($this->tour === null) {
              $this->tour = tour::instance($this->tourid);
          }
          return $this->tour;
      }
code_tokens: public function get_tour ( ) { if ( $ this -> tour === null ) { $ this -> tour = tour :: instance ( $ this -> tourid ) ; } return $ this -> tour ; }
docstring: Get the Tour instance that this step belongs to.
  
  @return  tour
docstring_tokens: Get the Tour instance that this step belongs to .