export type ErrorType = "NORMAL_ERROR" | "REQUEST_ERROR";
export interface MQErrorConfig {
    type?: ErrorType;
    cause?: any;
}
export declare class MQError extends Error {
    type: ErrorType;
    cause: any;
    constructor(e: any, config?: MQErrorConfig);
}
export declare function isMQError(error: any): error is MQError;