def test_get_method_without_extra(toml, expected):
    """
    Test the get method of the TOMLParser class when the store.extra section is missing.
    """
    toml_parser = ramalama.toml_parser.TOMLParser()
    toml_parser.parse(toml)
    assert toml_parser.get("store") == expected["store"]
    assert toml_parser.get("store.container") == expected["store"]["container"]
    assert toml_parser.get("store.engine") == expected["store"]["engine"]
    assert toml_parser.get("store.image") == expected["store"]["image"]
    assert toml_parser.get("store.transport") == expected["store"]["transport"]
    assert toml_parser.get("store.extra") is None

    Test the get method of the TOMLParser class when the store.extra section is missing.
    
test/unit/test_toml_parser.py