code: def get_actor(name):
      
      actor_name = _calculate_key(name)
      pickled_state = _internal_kv_get(actor_name)
      if pickled_state is None:
          raise ValueError("The actor with name={} doesn't exist".format(name))
      handle = pickle.loads(pickled_state)
      return handle
docs: Get a named actor which was previously created.
  
      If the actor doesn't exist, an exception will be raised.
  
      Args:
          name: The name of the named actor.
  
      Returns:
          The ActorHandle object corresponding to the name.