code: def test_is_chordal(self):
      assert not nx.is_chordal(self.non_chordal_G)
      assert nx.is_chordal(self.chordal_G)
      assert nx.is_chordal(self.connected_chordal_G)
      assert nx.is_chordal(nx.Graph())
      assert nx.is_chordal(nx.complete_graph(3))
      assert nx.is_chordal(nx.cycle_graph(3))
      assert not nx.is_chordal(nx.cycle_graph(5))
      assert nx.is_chordal(self.self_loop_G)
  
file_path: networkx/networkx/algorithms/tests/test_chordal.py
imports: import pytest
  import networkx
label_desc: Use image node_id 3 for calling the TestMCS obj's underlying member method code with example usage: obj.test_is_chordal() without return types