// The size of the TF slice operation as a std::vector.  We can always compute
  // this because we only manipulate slices with a Const size.
  std::vector<int64_t> size_as_vector;
};

std::vector<int64_t> IntTensorAsVector(const Tensor& t) {
  DCHECK(t.dtype() == DT_INT32 || t.dtype() == DT_INT64);
  std::vector<int64_t> result;
  result.reserve(t.NumElements());
  for (int i = 0; i < t.NumElements(); i++) {