def METHOD_NAME():
    """
    Read a compressed TSV TAR archive using TsvSource.
    """
    t = Transformer()
    s = TsvSource(t)
    g = s.parse(
        filename=os.path.join(RESOURCE_DIR, "test.tar.gz"),
        format="tsv",
        compression="tar.gz",
    )
    nodes = []
    edges = []
    for rec in g:
        if rec:
            if len(rec) == 4:
                edges.append(rec)
            else:
                nodes.append(nodes)
    assert len(nodes) == 3
    assert len(edges) == 1