def METHOD_NAME(get_graph):
    g = get_graph
    g6 = Graph()
    g6 += g
    g6.bind("dct", DCTERMS)
    g6.bind("skos", SKOS)
    assert "@xml:base" not in g6.serialize(format="xml")
    assert 'xml:base="http://one.org/"' in g6.serialize(format="xml", base=base_one)
    g6.base = base_two
    assert 'xml:base="http://two.org/"' in g6.serialize(format="xml")
    assert 'xml:base="http://one.org/"' in g6.serialize(format="xml", base=base_one)