code: def testSelectiveSum(
      self, values, partitions, num_partitions, expected_output
  ):
      actual_output = exp3_agent.selective_sum(
          values, partitions, num_partitions
      )
      self.assertAllCloseAccordingToType(expected_output, actual_output)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl.testing import parameterized
  import numpy
  import tensorflow
  import tensorflow_probability
  from tf_agents.bandits.agents import exp3_agent
  from tf_agents.bandits.drivers import driver_utils
  from tf_agents.specs import tensor_spec
  from tf_agents.trajectories import policy_step
  from tf_agents.trajectories import time_step
label_desc: Use image node_id 3 for calling the Exp3AgentTest obj's underlying member method code with example usage: obj.testSelectiveSum(values, partitions, num_partitions, expected_output) without return types