code: def test_check_estimator(self):
      # run VW through the sklearn estimator validation check
      # skip check until https://github.com/scikit-learn/scikit-learn/issues/16799 is closed
      return
      check_estimator(self.estimator())
  
imports: from collections import namedtuple
  import os
  import numpy
  from packaging import version
  import pandas
  import pytest
  from scipy.sparse import csr_matrix
  from sklearn import datasets, __version__
  from sklearn.model_selection import KFold
  from sklearn.utils.estimator_checks import check_estimator
  from vowpalwabbit.sklearn import VW, VWClassifier, VWRegressor, tovw, VWMultiClassifier, VWRegressor
label_desc: Use image node_id 1 for calling the BaseVWTest obj's underlying member method code with example usage: obj.test_check_estimator() without return types