export declare type MsgType = 'text' | 'image' | 'voice' | 'video' | 'music' | 'news' | 'transfer_customer_service';
export declare type TextContent = string;
export interface ImageContent {
    mediaId: string;
}
export interface VoiceContent {
    mediaId: string;
}
export interface VideoContent {
    mediaId: string;
    title: string;
    description: string;
}
export interface MusicContent {
    mediaId: string;
    title: string;
    description: string;
    musicUrl: string;
    hqMusicUrl: string;
}
export interface NewsContent {
    title: string;
    description: string;
    picUrl: string;
    url: string;
}
export interface ServiceContent {
    kfAccount?: string;
}
export declare type ReplyContent = TextContent | NewsContent[] | {
    type: MsgType;
    content: TextContent | ImageContent | VoiceContent | VideoContent | MusicContent | NewsContent[] | ServiceContent;
};
export declare type Handle = (message: object, ctx: object) => Promise<ReplyContent>;
export declare type HandlerConfig = string | {
    token: string;
    appid?: string;
    encodingAESKey?: string;
};
export declare class Handler {
    private token;
    private appid;
    private encodingAESKey;
    private readonly handlers;
    private cryptor;
    constructor(config?: HandlerConfig);
    setConfig(config: HandlerConfig): void;
    getHandler(type: string): Handle;
    setHandler(type: string, handle: Handle): Handler;
    text(handle: Handle): Handler;
    image(handle: Handle): Handler;
    voice(handle: Handle): Handler;
    location(handle: Handle): Handler;
    link(handle: Handle): Handler;
    event(handle: Handle): Handler;
    shortvideo(handle: Handle): Handler;
    hardware(handle: Handle): Handler;
    device_text(handle: Handle): Handler;
    device_event(handle: Handle): Handler;
    any(handle: Handle): Handler;
    middlewarify(): (ctx: any, next: any) => Promise<void>;
}
export declare const middleware: (config?: HandlerConfig) => Handler;