Status status;
  for (const std::vector<int64_t>& dims :
       std::vector<std::vector<int64_t>>{{n}, {1, n}, {n, 1}, {n / 2, 2}}) {
    // Create C++ Tensor
    Tensor src(tensorflow::DT_STRING, TensorShape(dims));
    for (int64_t i = 0; i < src.NumElements(); ++i) {
      src.flat<tstring>()(i) = data[i];
    }
    TF_Tensor* dst = TF_TensorFromTensor(src, &status);

    Node* a = ops::SourceOp(
        "Const", builder.opts()
                     .WithName("A")
                     .WithAttr("dtype", DT_STRING)
                     .WithAttr("value", Tensor(DT_STRING, TensorShape())));
    Node* b = ops::UnaryOp("EncodeBase64", a, builder.opts().WithName("B"));
    ops::BinaryOp("StringSplit", a, b, builder.opts().WithName("C"));

      continue;
    }

    if (node->type_string() == "Const") {
      // Skip Const op with type DT_STRING, since XLA autoclustering doesn't
      // support it.
      const AttrValue* attr = node->attrs().Find("dtype");
      if (attr != nullptr && attr->type() == DT_STRING) {
        continue;
      }
    }

    if (!allowlist.empty() && !allowlist.contains(node->def().op())) {

  const std::string& func_str =
      "    signature {"
      "      name: 'FunctionWith__OP_NAME__'"
      "      output_arg {"
      "        name: 'out'"
      "        type: DT_STRING"
      "      }"
      "    }"
      "    node_def {"
      "      name: 'error_op'"
      "      op: '__OP_NAME__'"
      "    }"
      "    ret {"
      "      key: 'out'"