code: def __init__(self, variables=None, confirm_variables=False):
      self.variables = variables
      self.confirm_variables = confirm_variables
  
file_path: feature_engine/tests/test_selection/test_base_selector.py
imports: import pytest
  from pandas.testing import assert_frame_equal
  from feature_engine.selection.base_selector import BaseSelector
label_desc: Use image node_id 1 to create a new MockClass object from inherited base classes: BaseSelector with example: obj = MockClass(variables, confirm_variables)