How to drop msg.payload from specific topics?

General
16

The RPi rebooted, I'm back in.
This is the function node that is fed from the Unifi node and has multiple outputs:

const lastSeenSeconds = 20;

let presenceCutoff = (Date.now() - (lastSeenSeconds * 1000)) / 1000; 
const people = {
    "presence/Phone1"  : "xx:xx:xx:xx:xx:xx",
    "presence/Phone2"  : "xx:xx:xx:xx:xx:xx",
    "presence/Phone3"  : "xx:xx:xx:xx:xx:xx",
    "presence/Phone4"  : "xx:xx:xx:xx:xx:xx",
    "presence/Phone5"  : "xx:xx:xx:xx:xx:xx"
};

return Object.keys(people).map(function(topic) {
    let devices = msg.payload[0].filter(device => device.mac === people[topic]);
//    let devices = msg.payload[0].filter(device => device.mac === people[topic]) && (device.last_seen > presenceCutoff);
    return {
        topic: topic,
        //retain: true,
        payload: devices.length > 0
    };
});