client.py: the client will not send metrics report if no metric is collected in that beat

src/client.py

@@ -208,6 +208,7 @@ class Client:
 				metrics = nodeMetrics + vmMetrics
 				if self.debugMode == "True":
 					print(metrics)
+				if len(metrics) is not 0:
 					if self.__send(metrics) is False:
 						raise RuntimeError
 				time.sleep(1)