original_string: public function checkCoupon($code, $articleNumber)
      {
          $requestData = new Check\RequestData($code, $articleNumber);
          $request = new Check\Request($requestData);
  
          return $this->sendRequest($request, Check\ApiResponse::class);
      }
code: public function checkCoupon($code, $articleNumber)
      {
          $requestData = new Check\RequestData($code, $articleNumber);
          $request = new Check\Request($requestData);
  
          return $this->sendRequest($request, Check\ApiResponse::class);
      }
code_tokens: public function checkCoupon ( $ code , $ articleNumber ) { $ requestData = new Check \ RequestData ( $ code , $ articleNumber ) ; $ request = new Check \ Request ( $ requestData ) ; return $ this -> sendRequest ( $ request , Check \ ApiResponse :: class ) ; }
docstring: Check a coupon.
  
  @param string $code The code to check.
  @param string $articleNumber The article number.
  @return Check\ApiResponse
docstring_tokens: Check a coupon .