code: def testBuild(self, exploration_strategy):
      policy = linear_policy.LinearBanditPolicy(
          self._action_spec,
          self._a,
          self._b,
          self._num_samples_per_arm,
          self._time_step_spec,
          exploration_strategy,
      )
  
      self.assertEqual(policy.time_step_spec, self._time_step_spec)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import itertools
  from absl.testing import parameterized
  import numpy
  import tensorflow
  from tf_agents.bandits.policies import linear_bandit_policy
  from tf_agents.bandits.specs import utils
  from tf_agents.policies import utils
  from tf_agents.specs import tensor_spec
  from tf_agents.trajectories import time_step
  from tf_agents.utils import test_utils
label_desc: Use image node_id 11 for calling the LinearBanditPolicyTest obj's underlying member method code with example usage: obj.testBuild(exploration_strategy) without return types