code: def test_nested_fixed_with_fallback_madness():
      d = DogmaticDict(
          fixed={"foo": {"bar": 20}},
          fallback={"foo": {"bar": 10, "c": 5}},
      )
      d["foo"] = {"bar": 30, "a": 1}
      assert d["foo"]["bar"] == 20
      assert d["foo"]["a"] == 1
      assert d["foo"]["c"] == 5
  
file_path: sacred/tests/test_config/test_dogmatic_dict.py
imports: import pytest
  from sacred.config.custom_containers import DogmaticDict
label_desc: Use image node_id 16 for calling a global function with example usage: test_nested_fixed_with_fallback_madness() without return types