code: def __init__(self):
      super().__init__()
  
      self.flow = FlowWithURLLayout()
  
imports: from functools import partial
  from unittest import mock
  import pytest
  from lightning.app import LightningApp, LightningFlow, LightningWork
  from lightning.app.core.flow import _RootFlow
  from lightning.app.frontend import StaticWebFrontend
  from lightning.app.utilities.app_helpers import AppStatePlugin, BaseStatePlugin, InMemoryStateStore, StateStore, _is_headless, _MagicMockJsonSerializable, is_overridden, is_static_method
  from lightning.app.utilities.exceptions import LightningAppStateException
label_desc: Use image node_id 1 to create a new NestedFlowWithURLLayout object from inherited base classes: Flow with example: obj = NestedFlowWithURLLayout()