code: def test_log_loss_wrong_number_of_example(self):
      labels = np.array([0, 1, 1])
      pred = np.array([0.2])
      self.assertRaises(
          ValueError, utils.log_loss, labels=labels, pred=pred
      )
  
imports: from unittest import mock
  from absl.testing import absltest
  from absl.testing import parameterized
  import numpy
  from tensorflow_privacy.privacy.privacy_tests import utils
label_desc: Use image node_id 9 for calling the TestLogLoss obj's underlying member method code with example usage: obj.test_log_loss_wrong_number_of_example() without return types