import { Request, Response } from 'express';
export declare class MqttMessageController {
    static getAllMessages(req: Request, res: Response): Promise<void>;
    static getMessagesByClientId(req: Request, res: Response): Promise<void>;
    static getMessagesByTopic(req: Request, res: Response): Promise<void>;
    static getMessagesByType(req: Request, res: Response): Promise<void>;
    static getMessagesByTimeRange(req: Request, res: Response): Promise<void>;
    static getMessageTypeStats(req: Request, res: Response): Promise<void>;
    static getMessageQosStats(req: Request, res: Response): Promise<void>;
    static getMessageSizeStats(req: Request, res: Response): Promise<void>;
    static getHourlyStats(req: Request, res: Response): Promise<void>;
    static getQosStats(req: Request, res: Response): Promise<void>;
    static getHourlyMessageStats(req: Request, res: Response): Promise<void>;
    static getPopularTopics(req: Request, res: Response): Promise<void>;
    static getActiveClients(req: Request, res: Response): Promise<void>;
    static getMessageHeatmapData(req: Request, res: Response): Promise<void>;
}
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