code: def test_karate_directed():
      G = nx.karate_club_graph().to_directed()
      _check_edge_connectivity(G)
  
imports: import itertools
  import pytest
  import networkx
  from networkx.algorithms.connectivity import EdgeComponentAuxGraph, bridge_components
  from networkx.algorithms.connectivity.edge_kcomponents import general_k_edge_subgraphs
  from networkx.utils import pairwise
label_desc: Use image node_id 27 for calling a global function with example usage: test_karate_directed() without return types