code: def test_complete_graph(self):
      G = nx.complete_graph(self.N)
      truth = {frozenset(G)}
      self._check_communities(G, truth)
  
imports: from itertools import chain, combinations
  import pytest
  import networkx
label_desc: Use image node_id 5 for calling the TestFastLabelPropagationCommunities obj's underlying member method code with example usage: obj.test_complete_graph() without return types