original_string: protected function generateCheckoutURLForCustomer($customerHash, $articleNumber)
      {
          return sprintf(
              'https://app.monsum.com/checkout/0/%s/%s/%s',
              $this->transport->getCredentials()->getAccountHash(),
              $customerHash,
              $articleNumber
          );
      }
code: protected function generateCheckoutURLForCustomer($customerHash, $articleNumber)
      {
          return sprintf(
              'https://app.monsum.com/checkout/0/%s/%s/%s',
              $this->transport->getCredentials()->getAccountHash(),
              $customerHash,
              $articleNumber
          );
      }
code_tokens: protected function generateCheckoutURLForCustomer ( $ customerHash , $ articleNumber ) { return sprintf ( 'https://app.monsum.com/checkout/0/%s/%s/%s' , $ this -> transport -> getCredentials ( ) -> getAccountHash ( ) , $ customerHash , $ articleNumber ) ; }
docstring: Get the checkout URL of an article for a customer.
  
  @param string $customerHash The customer hash.
  @param string $articleNumber The article number.
  @return string
docstring_tokens: Get the checkout URL of an article for a customer .