type: object
                    directResponse:
                      description: A HTTP rule can either return a direct_response,
                        redirect or forward (default) traffic.
                      properties:
                        body:
                          description: Specifies the content of the response body.
                          oneOf:

    support. Going forward, we will stop testing on Mac GPU systems. We continue
    to welcome patches that maintain Mac GPU support, and we will try to keep
    the Mac GPU build working.

## Changes to contrib APIs

*   The behavior of RNNCells is now stricter due to the transition towards
    making RNNCells act more like Keras layers.