code: def test_parse_edgelist_no_data(example_graph):
      G = example_graph
      H = nx.parse_edgelist(["1 2", "2 3", "3 4"], nodetype=int)
      assert nodes_equal(G.nodes, H.nodes)
      assert edges_equal(G.edges, H.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 5 for calling a global function with example usage: test_parse_edgelist_no_data(example_graph) without return types