class_docstr: Test class for first set of voting learner API tests.
code: def test_initialize_incorrect_sampler_kwargs_list(self):
      assert_raises_regex(
          ValueError,
          r"must have 3 entries",
          VotingLearner,
          ["SVC", "LogisticRegression", "MultinomialNB"],
          sampler_kwargs_list=[{"gamma": 1.0}],
      )
  
imports: import unittest
  from itertools import product
  from pathlib import Path
  import numpy
  from numpy.testing import assert_raises_regex
  from sklearn.ensemble import RandomForestRegressor, VotingClassifier, VotingRegressor
  from sklearn.linear_model import LinearRegression, LogisticRegression
  from sklearn.naive_bayes import MultinomialNB
  from sklearn.pipeline import Pipeline
  from sklearn.svm import SVC, SVR
  from skll.learner.voting import VotingLearner
  from skll.utils.testing import make_california_housing_data, make_digits_data, other_dir, output_dir
label_desc: Use image node_id 10 for calling the TestVotingLearnersAPIOne obj's underlying member method code with example usage: obj.test_initialize_incorrect_sampler_kwargs_list() without return types