let clients = new Set();const websockets = uWS.App().ws('/*', {    compression: uWS.SHARED_COMPRESSOR,    idleTimeout: 30,    maxBackpressure: 1024,    maxPayloadLength: 512,    open: (client) => {        clients.add(client);    },    close: (client) => {        clients.delete(client);         }});websockets.listen(SOCKET_PORT, (listenSocket) => {    if (listenSocket)         console.log('Listening to port ' + SOCKET_PORT);});tryingToBroadcastLater().then((likeNow) => {            clients.forEach(client => {                    if ( !client.send("message", true, true) )                        clients.delete(client);            });});