code: def test_nested_typechange(conf_dict):
      cfg = conf_dict({"f": {"a": 10}})
      assert cfg.typechanged == {"f.a": (type("a"), int)}
  
imports: import pytest
  import sacred.optional
  from sacred.config import ConfigDict
  from sacred.config.custom_containers import DogmaticDict, DogmaticList
label_desc: Use image node_id 10 for calling a global function with example usage: test_nested_typechange(conf_dict) without return types