code: def test_revelation():
      d = DogmaticDict({"a": 7, "b": 12})
      d["b"] = 23
      assert "a" not in d
      m = d.revelation()
      assert set(m) == {"a"}
      assert "a" in d
  
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 10 for calling a global function with example usage: test_revelation() without return types