code: def test_ring_of_cliques(self):
      G = nx.ring_of_cliques(self.N, self.K)
      truth = {
          frozenset([self.K * i + k for k in range(self.K)])
          for i in range(self.N)
      }
      self._check_communities(G, truth)
  
imports: from itertools import chain, combinations
  import pytest
  import networkx
label_desc: Use image node_id 9 for calling the TestFastLabelPropagationCommunities obj's underlying member method code with example usage: obj.test_ring_of_cliques() without return types