original_string: public function getCurrencyCode($currency = null)
      {
          if ($currency === null) {
              $currency = $this->_currency;
          }
  
          $code = KlarnaCurrency::getCode($currency);
          return (string) $code;
      }
code: public function getCurrencyCode($currency = null)
      {
          if ($currency === null) {
              $currency = $this->_currency;
          }
  
          $code = KlarnaCurrency::getCode($currency);
          return (string) $code;
      }
code_tokens: public function getCurrencyCode ( $ currency = null ) { if ( $ currency === null ) { $ currency = $ this -> _currency ; } $ code = KlarnaCurrency :: getCode ( $ currency ) ; return ( string ) $ code ; }
docstring: Returns the the currency code for the set currency constant.
  
  @param int $currency {@link KlarnaCurrency Currency} constant.
  
  @return string  Three letter currency code.
docstring_tokens: Returns the the currency code for the set currency constant .