import { ChatMessageService } from '@/modules/chat/chat-message.service';
import { ChatGateway } from '@/modules/chat/chat.gateway';
import { ChatConversationUser } from '@/modules/chat/entities/chat-conversation-user.entity';
export declare class RealtimeHelper {
    private readonly chatGateway;
    private readonly chatMessageService;
    constructor(chatGateway: ChatGateway, chatMessageService: ChatMessageService);
    notifyConversationUsers(conversationId: string, event: string, payload: any, tenantId: string): Promise<void>;
    findByConversation(conversationId: string, tenantId: string): Promise<ChatConversationUser[]>;
}