code: def test_analysis_state_nested_missing():
      state: AnalysisState = AnalysisState(a={"b": 4})
      assert state.missing is None
  
file_path: autogluon/eda/tests/unittests/test_state.py
imports: import pytest
  from autogluon.eda.state import AnalysisState, StateCheckMixin
  from autogluon.eda.utils.common import expand_nested_args_into_nested_maps
label_desc: Use image node_id 4 for calling a global function with example usage: test_analysis_state_nested_missing() without return types