def deploy_service_registry_and_set_urls(
    private_keys, web3, contract_manager, service_registry_address
) -> Tuple[ServiceRegistry, List[str]]:
    urls = ["http://foo", "http://boo", "http://coo"]
    c1_client = JSONRPCClient(web3, private_keys[0])
    c1_service_proxy = ServiceRegistry(
        jsonrpc_client=c1_client,
        service_registry_address=service_registry_address,
        contract_manager=contract_manager,
    )
    c2_client = JSONRPCClient(web3, private_keys[1])
    c2_service_proxy = ServiceRegistry(
        jsonrpc_client=c2_client,
        service_registry_address=service_registry_address,
        contract_manager=contract_manager,
    )
    c3_client = JSONRPCClient(web3, private_keys[2])
    c3_service_proxy = ServiceRegistry(
        jsonrpc_client=c3_client,
        service_registry_address=service_registry_address,
        contract_manager=contract_manager,
    )

    # Test that getting a random service for an empty registry returns None
    pfs_address = get_random_service(c1_service_proxy, "latest")
    assert pfs_address is None

    # Test that setting the urls works
    c1_service_proxy.set_url(urls[0])
    c2_service_proxy.set_url(urls[1])
    c3_service_proxy.set_url(urls[2])

    return c1_service_proxy, urls
def testResidualWrapper(self):
    wrapper_type = rnn_cell_wrapper_v2.ResidualWrapper
    x = ops.convert_to_tensor_v2_with_dispatch(
        np.array([[1., 1., 1.]]), dtype="float32")
    m = ops.convert_to_tensor_v2_with_dispatch(
        np.array([[0.1, 0.1, 0.1]]), dtype="float32")
    base_cell = rnn_cell_impl.GRUCell(
        3, kernel_initializer=init_ops.constant_initializer(0.5),
        bias_initializer=init_ops.constant_initializer(0.5))
    g, m_new = base_cell(x, m)
    wrapper_object = wrapper_type(base_cell)
    children = wrapper_object._trackable_children()
    wrapper_object.get_config()  # Should not throw an error
    self.assertIn("cell", children)
    self.assertIs(children["cell"], base_cell)

    g_res, m_new_res = wrapper_object(x, m)
    self.evaluate([variables_lib.global_variables_initializer()])
    res = self.evaluate([g, g_res, m_new, m_new_res])
    # Residual connections
    self.assertAllClose(res[1], res[0] + [1., 1., 1.])
    # States are left untouched
    self.assertAllClose(res[2], res[3])