type -> device

`type()` is depreciated and it looks like `device()` is appropriate
here. There are other `type` commands below and the error message says
that `option` can be a drop-in but I'm unsure if this is appropriate for
those calls.

advanced_source/cpp_extension.rst

@@ -688,7 +688,7 @@ We'll start with the C++ file, which we'll call ``lltm_cuda.cpp``, for example:
 
   // C++ interface
 
-  #define CHECK_CUDA(x) TORCH_CHECK(x.type().is_cuda(), #x " must be a CUDA tensor")
+  #define CHECK_CUDA(x) TORCH_CHECK(x.device().is_cuda(), #x " must be a CUDA tensor")
   #define CHECK_CONTIGUOUS(x) TORCH_CHECK(x.is_contiguous(), #x " must be contiguous")
   #define CHECK_INPUT(x) CHECK_CUDA(x); CHECK_CONTIGUOUS(x)