Type Alias Update

Update: {
    channel: "ticker";
    data: [{
        ask: number;
        ask_qty: number;
        bid: number;
        bid_qty: number;
        change: number;
        change_pct: number;
        high: number;
        last: number;
        low: number;
        symbol: string;
        volume: number;
        vwap: number;
    }];
    type: "snapshot" | "update";
}