code: def test_app_state_bool():
      app_state = AppState()
      assert not bool(app_state)
  
      app_state = AppState()
      app_state._store_state({"vars": {"x": 1, "y": 2}})
      assert bool(app_state)
  
imports: import os
  from re import escape
  from unittest import mock
  import lightning.app
  import pytest
  import requests
  from lightning.app import LightningApp, LightningFlow, LightningWork
  from lightning.app.structures import Dict, List
  from lightning.app.utilities.app_helpers import AppStatePlugin, BaseStatePlugin
  from lightning.app.utilities.state import AppState
  from lightning_cloud.openapi import Externalv1LightningappInstance, V1LightningappInstanceStatus
label_desc: Use image node_id 6 for calling a global function with example usage: test_app_state_bool() without return types