export declare class HttpException extends Error {
    code: number;
    msg: string;
    params: unknown;
    constructor(code: number, msg: string, params?: unknown);
}
export declare class BadRequestException extends HttpException {
    constructor(msg: string);
}
export declare class InternalServerException extends HttpException {
    constructor(msg: string);
}
export declare class UnauthorizedException extends HttpException {
    constructor(msg: string);
}
export declare class ForbiddenException extends HttpException {
    constructor(msg: string);
}
export declare class NotFoundException extends HttpException {
    constructor(msg: string);
}
export declare class UnprocessableEntityException extends HttpException {
    constructor(msg: string, params?: unknown[] | unknown);
}
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