def METHOD_NAME(self):
    ckan = Key(["ckan"])
    group = ckan.dynamic("group")
    assert group == ckan.first
    assert group == ckan.second
    assert group.name == ckan.a.name
    assert group.name == ckan.b.name
    assert group.name != ckan.b.age
    assert str(group.name) == "ckan.<group>.name"