*/
    static String toSourceHint(Model model) {
        if (model == null) {
            return "";
        }

        StringBuilder buffer = new StringBuilder(128);

        buffer.append(toId(model));

        File pomFile = model.getPomFile();
        if (pomFile != null) {
            buffer.append(" (").append(pomFile).append(')');
        }

        return buffer.toString();
    }

  for (int i = 0; i < tensors.size(); i++) {
    tensor_ids[i] = ToId(tensors[i]);
    tensor_dtypes[i] = tensors[i]->DataType();
  }
  return GradientTape::ShouldRecord(tensor_ids, tensor_dtypes);
}
void Tape::DeleteTrace(const AbstractTensorHandle* t) {
  GradientTape::DeleteTrace(ToId(t));
}

std::vector<int64_t> MakeTensorIDList(
    absl::Span<AbstractTensorHandle* const> tensors) {

                message,
                severity,
                version,
                ModelProblemUtils.toPath(source),
                lineNumber,
                columnNumber,
                ModelProblemUtils.toId(source),
                exception);
    }

    /**
     * Creates a new problem with the specified message and exception.
     *
     * @param message The message describing the problem, may be {@code null}.