code: def test_p2_load(self):
      G = nx.path_graph(2)
      c = nx.load_centrality(G)
      d = {0: 0.000, 1: 0.000}
      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 7 for calling the TestLoadCentrality obj's underlying member method code with example usage: obj.test_p2_load() without return types