def METHOD_NAME(qdac):  # noqa
    arrangement = qdac.arrange(contacts={'plunger1': 1, 'plunger2': 2, 'plunger3': 3})
    # -----------------------------------------------------------------------
    contacts = arrangement.contact_names
    # -----------------------------------------------------------------------
    assert contacts == ['plunger1', 'plunger2', 'plunger3']