code: def test_deepcopy(self):
      # Generate instance of evert encoder and test deepcopyable
      # See: https://github.com/scikit-learn-contrib/categorical-encoding/pull/194
      for encoder_name in encoders.__all__:
          with self.subTest(encoder_name=encoder_name):
              enc = getattr(encoders, encoder_name)()
              enc2 = deepcopy(enc)
  
imports: import warnings
  from datetime import timedelta
  import numpy
  from numpy.testing import assert_array_equal
  import pandas
  import sklearn
  import tests.helpers
  from sklearn.utils.estimator_checks import check_transformer_general, check_transformers_unfitted, check_n_features_in
  from sklearn.compose import ColumnTransformer
  from unittest import TestCase
  from copy import deepcopy
  import category_encoders
label_desc: Use image node_id 3 for calling the TestEncoders obj's underlying member method code with example usage: obj.test_deepcopy() without return types