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 draw(self, context):
        layout = self.layout

        input_prefs = context.user_preferences.inputs

        is_view3d = context.space_data.type == 'VIEW_3D'

        layout.prop(input_prefs, "ndof_sensitivity")
        layout.prop(input_prefs, "ndof_orbit_sensitivity")
        layout.prop(input_prefs, "ndof_deadzone")

        if is_view3d:
            layout.separator()
            layout.prop(input_prefs, "ndof_show_guide")

            layout.separator()
            layout.label(text="Orbit style")
            layout.row().prop(input_prefs, "ndof_view_navigate_method", text="")
            layout.row().prop(input_prefs, "ndof_view_rotate_method", text="")
            layout.separator()
            layout.label(text="Orbit options")
            layout.prop(input_prefs, "ndof_rotx_invert_axis")
            layout.prop(input_prefs, "ndof_roty_invert_axis")
            layout.prop(input_prefs, "ndof_rotz_invert_axis")

        # view2d use pan/zoom
        layout.separator()
        layout.label(text="Pan options")
        layout.prop(input_prefs, "ndof_panx_invert_axis")
        layout.prop(input_prefs, "ndof_pany_invert_axis")
        layout.prop(input_prefs, "ndof_panz_invert_axis")
        layout.prop(input_prefs, "ndof_pan_yz_swap_axis")

        layout.label(text="Zoom options")
        layout.prop(input_prefs, "ndof_zoom_invert")

        if is_view3d:
            layout.separator()
            layout.label(text="Fly/Walk options")
            layout.prop(input_prefs, "ndof_fly_helicopter", icon='NDOF_FLY')
            layout.prop(input_prefs, "ndof_lock_horizon", icon='NDOF_DOM')