code: def test_cb_item_nested():
      s, m = create_summary_and_mock({})
      s["this"] = 2
      m.check_updates(("this",), 2)
  
      m.reset({})
      s["that"] = dict(nest1=dict(nest2=4, nest2b=5))
      m.check_updates(("that",), dict(nest1=dict(nest2=4, nest2b=5)))
  
      m.reset({"that": {"nest1": {}}})
      s["that"]["nest1"]["nest2"] = 3
      m.check_updates(("that", "nest1", "nest2"), 3)
  
      m.reset({"that": {}})
      s["that"]["nest1"] = 8
      m.check_updates(("that", "nest1"), 8)
  
      m.reset({"that": {}})
      s["that"]["nest1a"] = dict(nest2c=9)
      m.check_updates(("that", "nest1a"), dict(nest2c=9))
  
file_path: wandb/tests/pytest_tests/unit_tests/test_wandb_summary.py
imports: from typing import TYPE_CHECKING, Any, Dict, Tuple
  from wandb import wandb_sdk
label_desc: Use image node_id 7 for calling a global function with example usage: test_cb_item_nested() without return types