code: def test_weighted_load(self):
      b = nx.load_centrality(self.G, weight="weight", normalized=False)
      for n in sorted(self.G):
          assert b[n] == self.exact_weighted[n]
  
imports: import pytest
  import networkx
label_desc: Use image node_id 4 for calling the TestLoadCentrality obj's underlying member method code with example usage: obj.test_weighted_load() without return types