code: def compute_single_action(
      self, observation, add_noise=False, update=True, **kwargs
  ):
      action, state_outs, extra_fetches = self.compute_actions(
          [observation], add_noise=add_noise, update=update, **kwargs
      )
      return action[0], state_outs, extra_fetches
  
imports: from typing import Optional
  import gymnasium
  import numpy
  import tree
  import ray
  import ray.experimental.tf_utils
  from ray.rllib.models import ModelCatalog
  from ray.rllib.policy.policy import Policy
  from ray.rllib.policy.sample_batch import SampleBatch
  from ray.rllib.utils import deprecation_warning
  from ray.rllib.utils.annotations import override
  from ray.rllib.utils.filter import get_filter
  from ray.rllib.utils.framework import try_import_tf
  from ray.rllib.utils.spaces.space_utils import get_base_struct_from_space, unbatch
label_desc: Use image node_id 3 for calling the ESTFPolicy obj's underlying member method code with example usage: obj.compute_single_action(observation, add_noise, update) and returns: action,  state_outs,  extra_fetches