def METHOD_NAME(self) -> None:
    """Test list type joined to create string."""
    assert LookupHandler.transform(["val1", "val2"], to_type="str") == "val1,val2"
    assert LookupHandler.transform({"val", "val"}, to_type="str") == "val"
    assert LookupHandler.transform(("val1", "val2"), to_type="str") == "val1,val2"