code: def test_K1(self):
      G = nx.complete_graph(1)
      H = nx.inverse_line_graph(G)
      solution = nx.path_graph(2)
      assert nx.is_isomorphic(H, solution)
  
imports: import pytest
  import networkx
  from networkx.generators import line
  from networkx.utils import edges_equal
label_desc: Use image node_id 8 for calling the TestGeneratorInverseLine obj's underlying member method code with example usage: obj.test_K1() without return types