code: def test_load_call_unload_graph_creation_extension_no_args(
      graph_creation_extension1,
  ):
      """
      Test graph_creation_extension1 which contains an extension with no args.
      """
      from cugraph_service_server.cugraph_handler import CugraphHandler
  
      handler = CugraphHandler()
  
      extension_dir = graph_creation_extension1
  
      # Load the extensions and ensure it can be called.
      handler.load_graph_creation_extensions(extension_dir)
      new_graph_ID = handler.call_graph_creation_extension(
          "custom_graph_creation_function", "()", "{}"
      )
      assert new_graph_ID in handler.get_graph_ids()
  
file_path: cugraph/python/cugraph-service/tests/test_cugraph_handler.py
imports: import sys
  import pickle
  from pathlib import Path
  import pytest
label_desc: Use image node_id 6 for calling a global function with example usage: test_load_call_unload_graph_creation_extension_no_args(graph_creation_extension1) without return types