code: def test_louvain_directed_graph():
      with pytest.raises(ValueError):
          cugraph_call(karate_asymmetric, edgevals=True, directed=True)
  
file_path: cugraph/python/cugraph/cugraph/tests/community/test_louvain.py
imports: import gc
  import time
  import pytest
  import networkx
  import cugraph
  import cupyx
  import cudf
  from cugraph.testing import utils, UNDIRECTED_DATASETS
  from cugraph.datasets import karate_asymmetric
label_desc: Use image node_id 5 for calling a global function with example usage: test_louvain_directed_graph() without return types