code: def testSessionUsesCurrent(self):
      session_user = MySessionUser()
      session1 = tf.compat.v1.Session()
      session2 = tf.compat.v1.Session()
      self.assertIsNot(session1, session2)
      with session1.as_default():
          self.assertIs(session_user.session, session1)
      with session2.as_default():
          self.assertIs(session_user.session, session2)
      session1.close()
      session2.close()
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import tensorflow
  from tf_agents.utils import session_utils
label_desc: Use image node_id 10 for calling the TfRunnableTest obj's underlying member method code with example usage: obj.testSessionUsesCurrent() without return types