add closeWS function

src/ws/tell_cluster_to_identify.ts

@@ -1,3 +1,4 @@
+import { closeWS } from "./close_ws.ts";
 import { ws } from "./ws.ts";
 
 /** Allows users to hook in and change to communicate to different clusters across different servers or anything they like. For example using redis pubsub to talk to other servers. */
@@ -10,7 +11,7 @@ export async function tellClusterToIdentify(
   const oldShard = ws.shards.get(shardId);
   await ws.identify(shardId, ws.maxShards);
 
-  if (oldShard?.ws.readyState === WebSocket.OPEN) {
-    oldShard.ws.close(3065, "Resharded!");
+  if (oldShard) {
+    closeWS(oldShard.ws, 3063, "Resharded!");
   }
 }