code: def test_connected_raise():
      DG = nx.DiGraph()
      with pytest.raises(NetworkXNotImplemented):
          next(nx.biconnected_components(DG))
      with pytest.raises(NetworkXNotImplemented):
          next(nx.biconnected_component_edges(DG))
      with pytest.raises(NetworkXNotImplemented):
          next(nx.articulation_points(DG))
      pytest.raises(NetworkXNotImplemented, nx.is_biconnected, DG)
  
file_path: networkx/networkx/algorithms/components/tests/test_biconnected.py
imports: import pytest
  import networkx
  from networkx import NetworkXNotImplemented
label_desc: Use image node_id 15 for calling a global function with example usage: test_connected_raise() without return types