interface WebSocketimport { type WebSocket } from "https://deno.land/std@0.34.0/ws/mod.ts"; Propertiesreadonlyconn: ConnreadonlyisClosed: booleanMethodsreceive(): AsyncIterableIterator<WebSocketEvent>send(data: WebSocketMessage): Promise<void>ping(data?: WebSocketMessage): Promise<void>close(code: number, reason?: string): Promise<void>