code: def test_buckminsterfullerene(
      self, normalized, sigma, laplacian_fn, method
  ):
      pytest.importorskip("scipy")
      G = nx.Graph(
          [
              (1, 10),
              (1, 41),
              (1, 59),
              (2, 12),
              (2, 42),
              (2, 60),
              (3, 6),
              (3, 43),
              (3, 57),
              (4, 8),
              (4, 44),
              (4, 58),
              (5, 13),
              (5, 56),
              (5, 57),
              (6, 10),
              (6, 31),
              (7, 14),
              (7, 56),
              (7, 58),
              (8, 12),
              (8, 32),
              (9, 23),
              (9, 53),
              (9, 59),
              (10, 15),
              (11, 24),
              (11, 53),
              (11, 60),
              (12, 16),
              (13, 14),
              (13, 25),
              (14, 26),
              (15, 27),
              (15, 49),
              (16, 28),
              (16, 50),
              (17, 18),
              (17, 19),
              (17, 54),
              (18, 20),
              (18, 55),
              (19, 23),
              (19, 41),
              (20, 24),
              (20, 42),
              (21, 31),
              (21, 33),
              (21, 57),
              (22, 32),
              (22, 34),
              (22, 58),
              (23, 24),
              (25, 35),
              (25, 43),
              (26, 36),
              (26, 44),
              (27, 51),
              (27, 59),
              (28, 52),
              (28, 60),
              (29, 33),
              (29, 34),
              (29, 56),
              (30, 51),
              (30, 52),
              (30, 53),
              (31, 47),
              (32, 48),
              (33, 45),
              (34, 46),
              (35, 36),
              (35, 37),
              (36, 38),
              (37, 39),
              (37, 49),
              (38, 40),
              (38, 50),
              (39, 40),
              (39, 51),
              (40, 52),
              (41, 47),
              (42, 48),
              (43, 49),
              (44, 50),
              (45, 46),
              (45, 54),
              (46, 55),
              (47, 54),
              (48, 55),
          ]
      )
      A = laplacian_fn(G)
      try:
          assert nx.algebraic_connectivity(
              G, normalized=normalized, tol=1e-12, method=method
          ) == pytest.approx(sigma, abs=1e-7)
          x = nx.fiedler_vector(
              G, normalized=normalized, tol=1e-12, method=method
          )
          check_eigenvector(A, sigma, x)
      except nx.NetworkXError as err:
          if err.args not in (
              ("Cholesky solver unavailable.",),
              ("LU solver unavailable.",),
          ):
              raise
  
imports: from math import sqrt
  import pytest
  import networkx
label_desc: Use image node_id 12 for calling the TestAlgebraicConnectivity obj's underlying member method code with example usage: obj.test_buckminsterfullerene(normalized, sigma, laplacian_fn, method) without return types