def METHOD_NAME(self, mockRConfig):
    running_config = self._nets_config(NET0_SETUP, default_route=True)
    requested_nets = self._nets_config(NET0_SETUP, default_route=True)
    original_requested_nets = copy.deepcopy(requested_nets)
    mockRConfig.return_value.networks = running_config
    canonicalize.canonicalize_networks(requested_nets)
    self._assert_default_route_keys(
        original_requested_nets, requested_nets
    )