code: def test_termination():
      # ensure termination of asyn_lpa_communities in two cases
      # that led to an endless loop in a previous version
      test1 = nx.karate_club_graph()
      test2 = nx.caveman_graph(2, 10)
      test2.add_edges_from([(0, 20), (20, 10)])
      nx.community.asyn_lpa_communities(test1)
      nx.community.asyn_lpa_communities(test2)
  
imports: from itertools import chain, combinations
  import pytest
  import networkx
label_desc: Use image node_id 6 for calling a global function with example usage: test_termination() without return types