code: def test_local_subgraph_difference_directed():
      dipaths = [(1, 2, 3, 4, 1), (1, 3, 1)]
      G = nx.DiGraph(it.chain(*[pairwise(path) for path in dipaths]))
  
      assert fset(nx.k_edge_components(G, k=1)) == fset(
          nx.k_edge_subgraphs(G, k=1)
      )
  
      # Unlike undirected graphs, when k=2, for directed graphs there is a case
      # where the k-edge-ccs are not the same as the k-edge-subgraphs.
      # (in directed graphs ccs and subgraphs are the same when k=2)
      assert fset(nx.k_edge_components(G, k=2)) != fset(
          nx.k_edge_subgraphs(G, k=2)
      )
  
      assert fset(nx.k_edge_components(G, k=3)) == fset(
          nx.k_edge_subgraphs(G, k=3)
      )
  
      _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 19 for calling a global function with example usage: test_local_subgraph_difference_directed() without return types