code: public static MetricQueryService createMetricQueryService(
  		RpcService rpcService,
  		ResourceID resourceID,
  		long maximumFrameSize) {
  
  		String endpointId = resourceID == null
  			? METRIC_QUERY_SERVICE_NAME
  			: METRIC_QUERY_SERVICE_NAME + "_" + resourceID.getResourceIdString();
  
  		return new MetricQueryService(rpcService, endpointId, maximumFrameSize);
  	}
docs: Starts the MetricQueryService actor in the given actor system.
  
  @param rpcService The rpcService running the MetricQueryService
  @param resourceID resource ID to disambiguate the actor name
  @return actor reference to the MetricQueryService