*   Improvements to the TensorFlow debugging experience:

    *   Previously, TensorFlow error stack traces involved many internal frames,
        which could be challenging to read through, while not being actionable
        for end users. As of TF 2.7, TensorFlow filters internal frames in most
        errors that it raises, to keep stack traces short, readable, and focused

     */
    String getIndexFieldDocId();

    /**
     * Get the value for the key 'index.field.id'. <br>
     * The value is, e.g. _id <br>
     * comment: Field name for internal ID in the index.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getIndexFieldId();

    /**