code: def missing_dispersion_tolerance(request):
      request.cls.tol = 0.5 if os.name == "nt" else 0.01
  
file_path: yellowbrick/tests/test_contrib/test_missing/test_dispersion.py
imports: import os
  import pytest
  from sklearn.datasets import make_classification
  from tests.base import VisualTestCase
  from yellowbrick.contrib.missing.dispersion import *
label_desc: Use image node_id 1 for calling a global function with example usage: missing_dispersion_tolerance(request) without return types