original_string: public function andRespondentTracks($fields = '*', $groupBy = false) {
          $this->sql_select->join('gems__respondent2track',
                  'gto_id_respondent_track = gr2t_id_respondent_track',
                  $fields);
  
          if ($groupBy && is_array($fields)) {
              $this->sql_select->group($fields);
          }
  
          return $this;
      }
code: public function andRespondentTracks($fields = '*', $groupBy = false) {
          $this->sql_select->join('gems__respondent2track',
                  'gto_id_respondent_track = gr2t_id_respondent_track',
                  $fields);
  
          if ($groupBy && is_array($fields)) {
              $this->sql_select->group($fields);
          }
  
          return $this;
      }
code_tokens: public function andRespondentTracks ( $ fields = '*' , $ groupBy = false ) { $ this -> sql_select -> join ( 'gems__respondent2track' , 'gto_id_respondent_track = gr2t_id_respondent_track' , $ fields ) ; if ( $ groupBy && is_array ( $ fields ) ) { $ this -> sql_select -> group ( $ fields ) ; } return $ this ; }
docstring: Add Respondent Track info to the select statement
  
  @param string|array $fields
  @param boolean $groupBy Optional, add these fields to group by statement
  @return \Gems_Tracker_Token_TokenSelect
docstring_tokens: Add Respondent Track info to the select statement