bool IsStackOp(const Node& node) const {
    const XlaResourceOpInfo* op_info =
        GetResourceOpInfoForOp(node.type_string());
    return op_info && op_info->resource_kind() == XlaResourceKind::kStack;
  }

  bool IsTensorArrayOp(const Node& node) const {
    const XlaResourceOpInfo* op_info =
        GetResourceOpInfoForOp(node.type_string());
    return op_info && op_info->resource_kind() == XlaResourceKind::kTensorArray;

  }
  if (should_ignore) {
    *out_resource_op_kind = std::nullopt;
    return absl::OkStatus();
  }

  const XlaResourceOpInfo* op_info = GetResourceOpInfoForOp(n.type_string());
  if (op_info) {
    *out_resource_op_kind = op_info->kind();
    return absl::OkStatus();
  }

  // We conservatively assume that functions will both read and write resource

        // fold, say, a TensorArrayRead or a StackPopV2).  But we don't
        // auto-cluster these operations today so we're good for now.
        const XlaResourceOpInfo* op_info =
            GetResourceOpInfoForOp(node->type_string());
        bool is_tensor_array_or_stack_op =
            op_info && op_info->resource_kind() != XlaResourceKind::kVariable;
        if (!is_tensor_array_or_stack_op) {