code: def test_florentine_families_load(self):
      G = self.F
      c = nx.load_centrality(G)
      d = {
          "Acciaiuoli": 0.000,
          "Albizzi": 0.211,
          "Barbadori": 0.093,
          "Bischeri": 0.104,
          "Castellani": 0.055,
          "Ginori": 0.000,
          "Guadagni": 0.251,
          "Lamberteschi": 0.000,
          "Medici": 0.522,
          "Pazzi": 0.000,
          "Peruzzi": 0.022,
          "Ridolfi": 0.117,
          "Salviati": 0.143,
          "Strozzi": 0.106,
          "Tornabuoni": 0.090,
      }
      for n in sorted(G):
          assert c[n] == pytest.approx(d[n], abs=1e-3)
  
imports: import pytest
  import networkx
label_desc: Use image node_id 9 for calling the TestLoadCentrality obj's underlying member method code with example usage: obj.test_florentine_families_load() without return types