type: string
                                httpQueryParameterName:
                                  description: Hash based on a specific HTTP query
                                    parameter.
                                  type: string
                                maglev:
                                  description: The Maglev load balancer implements

                                  type: string
                                httpQueryParameterName:
                                  description: Hash based on a specific HTTP query
                                    parameter.
                                  type: string
                                maglev:
                                  description: The Maglev load balancer implements

        isomorphic to GraphDef and will be used to replace GraphDef-based (e.g.,
        Grappler) optimizations.
    *   Deprecated and removed `attrs()` function in shape inference. All
        attributes should be queried by name now (rather than range returned) to
        enable changing the underlying storage there.
    *   The following Python symbols were accidentally added in earlier versions