code: def test_warm_start_l2r(bin_dense_train_data):
      bin_dense, bin_target = bin_dense_train_data
      clf = CDClassifier(warm_start=True, random_state=0, penalty="l2")
  
      clf.C = 0.1
      clf.fit(bin_dense, bin_target)
      np.testing.assert_almost_equal(
          clf.score(bin_dense, bin_target), 1.0
      )
  
      clf.C = 0.2
      clf.fit(bin_dense, bin_target)
      np.testing.assert_almost_equal(
          clf.score(bin_dense, bin_target), 1.0
      )
  
imports: import numpy
  import pytest
  from sklearn.datasets import load_digits
  from sklearn.preprocessing import LabelBinarizer
  from lightning.impl.primal_cd import CDClassifier, CDRegressor
  from lightning.impl.tests.utils import check_predict_proba
label_desc: Use image node_id 14 for calling a global function with example usage: test_warm_start_l2r(bin_dense_train_data) without return types