code: def test_not_strongly_connected(self):
      b = nx.load_centrality(self.D)
      result = {
          0: 5.0 / 12,
          1: 1.0 / 4,
          2: 1.0 / 12,
          3: 1.0 / 4,
          4: 0.000,
      }
      for n in sorted(self.D):
          assert result[n] == pytest.approx(b[n], abs=1e-3)
          assert result[n] == pytest.approx(
              nx.load_centrality(self.D, n), abs=1e-3
          )
  
imports: import pytest
  import networkx
label_desc: Use image node_id 2 for calling the TestLoadCentrality obj's underlying member method code with example usage: obj.test_not_strongly_connected() without return types