code: def test_covered_neighbors_with_labels(self):
      G1 = nx.Graph()
      G1.add_edges_from(self.G1_edges)
      G1.add_node(0)
      G2 = nx.relabel_nodes(G1, self.mapped)
  
      G1_degree = dict(G1.degree)
      nx.set_node_attributes(
          G1,
          dict(zip(G1, it.cycle(labels_many))),
          "label",
      )
      nx.set_node_attributes(
          G2,
          dict(
              zip(
                  [self.mapped[n] for n in G1],
                  it.cycle(labels_many),
              )
          ),
          "label",
      )
      l1 = dict(G1.nodes(data="label", default=-1))
      l2 = dict(G2.nodes(data="label", default=-1))
      gparams = _GraphParameters(
          G1,
          G2,
          l1,
          l2,
          nx.utils.groups(l1),
          nx.utils.groups(l2),
          nx.utils.groups(dict(G2.degree())),
      )
  
      m = {9: self.mapped[9], 1: self.mapped[1]}
      m_rev = {self.mapped[9]: 9, self.mapped[1]: 1}
  
      T1 = {7, 8, 2, 4, 5, 6}
      T1_tilde = {0, 3}
      T2 = {"g", "h", "b", "d", "e", "f"}
      T2_tilde = {"x", "c"}
  
      sparams = _StateParameters(
          m, m_rev, T1, None, T1_tilde, None, T2, None, T2_tilde, None
      )
  
      u = 5
      candidates = _find_candidates(u, gparams, sparams, G1_degree)
      assert candidates == {self.mapped[u]}
  
      u = 6
      candidates = _find_candidates(u, gparams, sparams, G1_degree)
      assert candidates == {self.mapped[u]}
  
      # Assign to 2, the same label as 6
      G1.nodes[2]["label"] = G1.nodes[u]["label"]
      G2.nodes[self.mapped[2]]["label"] = G1.nodes[u]["label"]
      l1 = dict(G1.nodes(data="label", default=-1))
      l2 = dict(G2.nodes(data="label", default=-1))
      gparams = _GraphParameters(
          G1,
          G2,
          l1,
          l2,
          nx.utils.groups(l1),
          nx.utils.groups(l2),
          nx.utils.groups(dict(G2.degree())),
      )
  
      candidates = _find_candidates(u, gparams, sparams, G1_degree)
      assert candidates == {self.mapped[u], self.mapped[2]}
  
imports: import itertools
  import pytest
  import networkx
  from networkx import vf2pp_is_isomorphic, vf2pp_isomorphism
  from networkx.algorithms.isomorphism.vf2pp import _consistent_PT, _cut_PT, _feasibility, _find_candidates, _find_candidates_Di, _GraphParameters, _initialize_parameters, _matching_order, _restore_Tinout, _restore_Tinout_Di, _StateParameters, _update_Tinout
label_desc: Use image node_id 4 for calling the TestGraphCandidateSelection obj's underlying member method code with example usage: obj.test_covered_neighbors_with_labels() without return types