def keep_going(job)
      if job.respond_to?(:keep_going)
        job.keep_going()
      else
        # TBD @next_actor = Env.find_actor(@next_actor) if @next_actor.is_a?(Symbol)
        @next_actor.send(@next_method, job) unless @next_actor.nil? || @next_method.nil?
      end
    end
def keep_going(job)
      if job.respond_to?(:keep_going)
        job.keep_going()
      else
        # TBD @next_actor = Env.find_actor(@next_actor) if @next_actor.is_a?(Symbol)
        @next_actor.send(@next_method, job) unless @next_actor.nil? || @next_method.nil?
      end
    end
Moves the job onto the next Actor. If the job responds to :keep_going
 that is used, otherwise the @next_actor and @next_method care used to
 continue. This method is executed asynchronously.
 @param [Object] job data to get the key for