@nestjs/websockets/interfaces/server-and-event-streams-host.interface.d.ts

import { ReplaySubject, Subject } from 'rxjs';
/**
 * @publicApi
 */
export interface ServerAndEventStreamsHost<T = any> {
    server: T;
    init: ReplaySubject<T>;
    connection: Subject<any>;
    disconnect: Subject<any>;
}