code: def test_get_or_train_cav_save_test(self):
      cav_instance = get_or_train_cav(
          self.concepts,
          self.bottleneck,
          self.acts,
          cav_dir=self.cav_dir,
          cav_hparams=self.hparams,
      )
      # check values of some elements.
      self.assertEqual(cav_instance.cavs[0][0], self.cav_vecs[0][0])
      self.assertEqual(cav_instance.cavs[1][2], self.cav_vecs[1][2])
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  import pickle
  import shutil
  import numpy
  import tensorflow
  from sklearn import linear_model
  from six.moves import range
  from tcav.cav import CAV, get_or_train_cav
  from tensorflow.python.platform import flags
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 12 for calling the CavTest obj's underlying member method code with example usage: obj.test_get_or_train_cav_save_test() without return types