code: def setup_function():
      gc.collect()
  
file_path: cugraph/python/cugraph/cugraph/tests/structure/test_convert_matrix.py
imports: import gc
  import pytest
  import numpy
  import networkx
  import cugraph
  from cugraph.testing import utils
label_desc: Use image node_id 1 for calling a global function with example usage: setup_function() without return types