class_docstr: A recurrent actor.
class_docstr_tok: ["A","recurrent","actor","."]
code: def update(self, wait: bool = False):
      if self._variable_client:
          self._variable_client.update(wait)
  
file_path: acme/acme/agents/tf/impala/acting.py
imports: from typing import Optional
  from acme import adders
  from acme import core
  from acme import types
  from acme.tf import utils
  from acme.tf import variable_utils
  import dm_env
  import sonnet
  import tensorflow
  import tensorflow_probability
label_desc: Use image node_id 5 for calling the IMPALAActor obj's underlying member method code with example usage: obj.update(wait) without return types