enabled by calling `tf.debugging.is_traceback_filtering_enabled()`.

    Note that this feature is only available with Python 3.7 or higher.

    *   Improve the informativeness of error messages raised by Keras
        `Layer.__call__()`, by adding the full list of argument values passed to
        the layer in every exception.

*   Introduce the `tf.compat.v1.keras.utils.track_tf1_style_variables`

### Structured logging

SIG Instrumentation standardized the structure of log messages and references to Kubernetes objects. Structured logging makes parsing, processing, storing, querying and analyzing logs easier. New methods in the klog library enforce log message structure.

                    maxProperties: 4096
                    type: object
                    x-kubernetes-validations:
                    - message: wildcard not allowed in label key match
                      rule: self.all(key, !key.contains('*'))
                    - message: key must not be empty
                      rule: self.all(key, key.size() != 0)
                type: object
              sha256: