code: def test_k6(self):
      expected = set()
      self._check_communities(6, expected)
  
file_path: networkx/networkx/algorithms/community/tests/test_kclique.py
imports: from itertools import combinations
  import pytest
  import networkx
label_desc: Use image node_id 7 for calling the TestZacharyKarateClub obj's underlying member method code with example usage: obj.test_k6() without return types