code: def golden_call(filename):
      if filename == "dolphins":
          return 0.4962422251701355
      if filename == "karate":
          return 0.38428664207458496
      if filename == "netscience":
          return 0.9279554486274719
  
file_path: cugraph/python/cugraph/cugraph/tests/community/test_ecg.py
imports: import gc
  import pytest
  import networkx
  import cugraph
  from cugraph.testing import utils
  from cugraph.datasets import karate, dolphins, netscience
label_desc: Use image node_id 2 for calling a global function with example usage: golden_call(filename) and returns: int, int, int