original_string: public function getRoundCode($roundId)
      {
          $this->_ensureRounds();
          $roundCode = null;
  
          if (array_key_exists($roundId, $this->_rounds) && array_key_exists('gro_code', $this->_rounds[$roundId])) {
              $roundCode = $this->_rounds[$roundId]['gro_code'];
          }
  
          return $roundCode;
      }
code: public function getRoundCode($roundId)
      {
          $this->_ensureRounds();
          $roundCode = null;
  
          if (array_key_exists($roundId, $this->_rounds) && array_key_exists('gro_code', $this->_rounds[$roundId])) {
              $roundCode = $this->_rounds[$roundId]['gro_code'];
          }
  
          return $roundCode;
      }
code_tokens: public function getRoundCode ( $ roundId ) { $ this -> _ensureRounds ( ) ; $ roundCode = null ; if ( array_key_exists ( $ roundId , $ this -> _rounds ) && array_key_exists ( 'gro_code' , $ this -> _rounds [ $ roundId ] ) ) { $ roundCode = $ this -> _rounds [ $ roundId ] [ 'gro_code' ] ; } return $ roundCode ; }
docstring: Return the round code for a given roundId
  
  @param int $roundId
  @return string|null Null when RoundId not found
docstring_tokens: Return the round code for a given roundId