option(DOWNLOAD_PYTORCH "Download Pytorch source" ON)
option(DOWNLOAD_ONNX "Download ONNX source" ON)
option(DOWNLOAD_ABSEIL "Download Abseil-cpp source" ON)
+option(DOWNLOAD_PYBIND11 "Download Pybind11 source" ON)
option(DOWNLOAD_GTEST "Download Google Test source" ON)
option(BUILD_GTEST "Build Google Test from the downloaded source" ON)