class_docstr: Base class for TF-Agents unit tests.
code: def tearDown(self):
      gin.clear_config()
      super(TestCase, self).tearDown()
  
file_path: agents/tf_agents/utils/test_utils.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  from absl import flags
  import gin
  import numpy
  import tensorflow
label_desc: Use image node_id 2 for calling the TestCase obj's underlying member method code with example usage: obj.tearDown() without return types