code: def test_analysis_state_nested_mutation():
      state: AnalysisState = AnalysisState()
      assert state.a is None
      state.a = {}
      state.a.b = 42
      assert state.a.b == 42
  
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 6 for calling a global function with example usage: test_analysis_state_nested_mutation() without return types