code: def test_quantile_fold_default_value():
      # test case 1: Test quantiles, with fold default = 0.05
      transformer = Winsorizer(capping_method="quantiles")
      assert transformer.fold == 0.05
  
imports: import math
  import numpy
  import pandas
  import pytest
  from feature_engine.outliers import Winsorizer
label_desc: Use image node_id 7 for calling a global function with example usage: test_quantile_fold_default_value() without return types