code: def test_edgelist_integers(self, tmp_path):
      G = nx.convert_node_labels_to_integers(self.G)
      fname = tmp_path / "el.txt"
      nx.write_edgelist(G, fname)
      H = nx.read_edgelist(fname, nodetype=int)
      # isolated nodes are not written in edgelist
      G.remove_nodes_from(list(nx.isolates(G)))
      assert nodes_equal(list(H), list(G))
      assert edges_equal(list(H.edges()), list(G.edges()))
  
imports: import io
  import textwrap
  import pytest
  import networkx
  from networkx.utils import edges_equal, graphs_equal, nodes_equal
label_desc: Use image node_id 11 for calling the TestEdgelist obj's underlying member method code with example usage: obj.test_edgelist_integers(tmp_path) without return types