// dimensions to be equal to the size of window dimensions and window strides.
template <int num_dims>
static PaddingArray GetReduceWindowPaddingAsArray(
    llvm::ArrayRef<int64_t> input_dims, ArrayAttr window_dims,
    ArrayAttr window_strides, StringRef padding, Builder *builder) {
  if (padding == "VALID") {
    return PaddingArray(num_dims, std::make_pair(0, 0));
  }
  assert(padding == "SAME");