pub unsafe extern "C" fn cuda_malloc_async(
devPtr: *mut *mut c_void,
size: usize,
stream: CudaStreamHandle,
) -> CudaRustErrorpub unsafe extern "C" fn cuda_malloc_async(
devPtr: *mut *mut c_void,
size: usize,
stream: CudaStreamHandle,
) -> CudaRustError