var
    /**
     * @type Slack
    **/
    SLACK;

function Slack() {
    /** @type {number} */
    this.lastServerVersion = 0;
}

Slack.prototype.update = function(data) {
    if (data.v)
        this.lastServerVersion = data.v;
    if (data.static) {
        console.log("updated static");
    }
    if (data.live) {
        console.log("updated LIVE");
    }
}

SLACK = new Slack();