code: public GetFailedReasonResponse getFailedReason(SesRequest request) {
          InternalRequest internalRequest = this.createRequest("failedReason", request, HttpMethodName.GET);
          return this.invokeHttpClient(internalRequest, GetFailedReasonResponse.class);
      }
docs: Query the failed reason
  
  @param request The request object which it's <code>credentials</code> can be override
  @return The response which includes the detail of failed reason
  
  @see com.baidubce.services.ses.model.GetFailedReasonResponse