Good day, currently i am using http://docs.ruckuswireless.com/sz-100/sz-public-api-reference-guide-3-4.html as a reference. upon reading the document i can get clients Rx/Tx bytes using /v4_0/aps/{apMac}/operational/client. how can i calculate the zone's Rx/Tx, is the api a counter or i just need to sum all ap client?