code: def testBatchContainsBatch(self):
      batch1 = np.array([[1, 2], [3, 4], [5, 6], [7, 8]])
      batch2 = np.array([[3, 4], [3, 4], [1, 2]])
      self.assertTrue(test_utils.contains(batch1, batch2))
  
file_path: agents/tf_agents/utils/test_utils_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import numpy
  from tf_agents.utils import test_utils
label_desc: Use image node_id 3 for calling the TestUtilsTest obj's underlying member method code with example usage: obj.testBatchContainsBatch() without return types