items:
                            type: string
                          type: array
                        credentialName:
                          description: For gateways running on Kubernetes, the name
                            of the secret that holds the TLS certs including the CA
                            certificates.
                          type: string

                          items:
                            type: string
                          type: array
                        credentialName:
                          description: For gateways running on Kubernetes, the name
                            of the secret that holds the TLS certs including the CA
                            certificates.
                          type: string

*   `tf.data`

    * `tf.data` now has an `autotune_options.initial_parallelism` option to
      control the initial parallelism setting used by autotune before the data
      pipeline has started running. The default is 16. A lower value reduces
      initial memory usage, while a higher value improves startup time.

## Keras

*  `keras.layers.experimental.DynamicEmbedding`
    * Added `DynamicEmbedding` Keras layer