code: def cugraph_louvain(G):
      # cugraph Louvain Call
      t1 = time.time()
      parts, mod = cugraph.louvain(G)
      t2 = time.time() - t1
      print("Cugraph Louvain Time : " + str(t2))
  
      return parts, mod
  
file_path: cugraph/python/cugraph/cugraph/tests/community/test_leiden.py
imports: import gc
  import time
  import pytest
  import networkx
  import cugraph
  import cudf
  from cugraph.testing import utils, UNDIRECTED_DATASETS
  from cugraph.datasets import karate_asymmetric
label_desc: Use image node_id 4 for calling a global function with example usage: cugraph_louvain(G) and returns: parts,  mod