How stitch image with cuda？

A stitching with CUDA did not work.

OpenCV4.5.1, OpenCV_Contribute4.5.1, CUDA10.2

OpenCV-reference said: "If you have cuda device cv::Stitcher can be configured to offload certain operations to GPU. If you prefer this configuration set try_use_gpu to true." link : enter link description here

But there isn't "try_use_gpu" in the sample code.