code: @Override
  	public void internalWrite(Server server, Query query, ImmutableList<Result> results) throws Exception {
  		String gatewayMessage = getGatewayMessage(results);
  
  		// message won't be returned if there are no numeric values in the query results
  		if (gatewayMessage != null) {
  			logger.info(gatewayMessage);
  			doSend(gatewayMessage);
  		}
  	}
docs: Implementation of the base writing method.  Operates in two stages:
  <br/>
  First turns the query result into a JSON message in Stackdriver format
  <br/>
  Second posts the message to the Stackdriver gateway via HTTP