class_docstr: Base class for optimization objectives.
  
  Args:
      name (string): <span style="color:#0000C0"><b>internal use</b></span>.
      states_spec (specification): <span style="color:#0000C0"><b>internal use</b></span>.
      internals_spec (specification): <span style="color:#0000C0"><b>internal use</b></span>.
      auxiliaries_spec (specification): <span style="color:#0000C0"><b>internal use</b></span>.
      actions_spec (specification): <span style="color:#0000C0"><b>internal use</b></span>.
      reward_spec (specification): <span style="color:#0000C0"><b>internal use</b></span>.
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code: def required_policy_fns(self):
      return ()
  
file_path: tensorforce/tensorforce/core/objectives/objective.py
imports: from tensorforce.core import Module, SignatureDict, TensorSpec, tf_function
label_desc: Use image node_id 3 for calling the Objective obj's underlying member method code with example usage: obj.required_policy_fns() and returns: 