def METHOD_NAME():
    point_list = [[0, 0], [1, 0], [0, 1], [1, 1]]
    filtered_rips = RipsComplex(points=point_list, max_edge_length=1.0, sparse=0.001)
    simplex_tree = filtered_rips.create_simplex_tree(max_dimension=1)
    assert simplex_tree._is_defined() == True
    assert simplex_tree._is_persistence_defined() == False
    assert simplex_tree.num_simplices() == 8
    assert simplex_tree.num_vertices() == 4