def METHOD_NAME():
    c1 = openmc.Cell()
    u1 = openmc.Universe(cells=[c1])
    c2 = openmc.Cell()
    u2 = openmc.Universe(cells=[c2])
    c3 = openmc.Cell(fill=u1)
    c4 = openmc.Cell(fill=u2)
    u3 = openmc.DAGMCUniverse(filename="")
    c5 = openmc.Cell(fill=u3)
    u4 = openmc.Universe(cells=[c3, c4, c5])
    univs = set(u4.get_all_universes().values())
    assert not (univs ^ {u1, u2, u3})