code: def test_save_load(self, data):
      file_name = "tmp_sklearn.model"
  
      model_before = VW(l=100)
      model_before.fit(data.x, data.y)
      before_saving = model_before.predict(data.x)
      model_before.save(file_name)
  
      model_after = VW(l=100)
      model_after.load(file_name)
      after_loading = model_after.predict(data.x)
  
      assert np.allclose(before_saving, after_loading)
  
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 2 for calling the TestVW obj's underlying member method code with example usage: obj.test_save_load(data) without return types