code: def _distribution(
      self,
  ):  # pytype: disable=signature-mismatch  # overriding-parameter-count-checks
      return policy_step.PolicyStep(())
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl.testing import parameterized
  import numpy
  from six.moves import range
  import tensorflow
  from tf_agents.policies import temporal_action_smoothing
  from tf_agents.policies import tf_policy
  from tf_agents.specs import tensor_spec
  from tf_agents.trajectories import policy_step
  from tf_agents.trajectories import time_step
  from tf_agents.utils import test_utils
label_desc: Use image node_id 3 for calling the StateIncrementPolicy obj's underlying member method code with example usage: obj._distribution() and returns: policy_step