code: def mod(request):
      return DeadZoneRegressor(effect=request.param, threshold=0.3)
  
file_path: scikit-lego/tests/test_estimators/test_deadzone.py
imports: import numpy
  import pytest
  from sklego.linear_model import DeadZoneRegressor
  from sklego.testing import check_shape_remains_same_regressor
label_desc: Use image node_id 2 for calling a global function with example usage: mod(request) and returns: DeadZoneRegressor