code: def test_simple_app_store_warning():
      store = InMemoryStateStore()
      user_id = "1234"
      store.add(user_id)
      state = {"data": "I'm a state that's larger than 120 bytes"}
      with pytest.raises(
          LightningAppStateException, match="is larger than the"
      ):
          store.set_app_state(user_id, state)
  
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 3 for calling a global function with example usage: test_simple_app_store_warning() without return types