docs: @BetaApi
    public final Operation insertAutoscaler(String zone, Autoscaler autoscalerResource) {
  
      InsertAutoscalerHttpRequest request =
          InsertAutoscalerHttpRequest.newBuilder()
              .setZone(zone)
              .setAutoscalerResource(autoscalerResource)
              .build();
      return insertAutoscaler(request);
    }