description: Match a specific route within the virtual
                                    host.
                                  properties:
                                    action:
                                      description: |-
                                        Match a route with specific action type.

                                  description: Match a specific route within the virtual
                                    host.
                                  properties:
                                    action:
                                      description: |-
                                        Match a route with specific action type.

    *   In `Layer.call`, `AutoCastVariable`s will no longer be casted within
        `MirroredStrategy.run` or `ReplicaContext.merge_call`. This is because a
        thread local variable is used to determine whether `AutoCastVariable`s
        are casted, and those two functions run with a different thread. Note
        this only applies if one of these two functions is called within
        `Layer.call`; if one of those two functions calls `Layer.call`,