export declare class DnsError extends Error {
    code: number;
    constructor(name: string, code: number, msg: string, caller?: Function);
}
export declare class DnsProtocolError extends DnsError {
    constructor(message?: string, caller?: Function);
}
export declare class DnsCannotProcessError extends DnsError {
    constructor(message?: string, caller?: Function);
}
export declare class DnsNoNameError extends DnsError {
    constructor(message?: string, caller?: Function);
}
export declare class DnsNotImplementedError extends DnsError {
    constructor(message?: string, caller?: Function);
}
export declare class DnsRefusedError extends DnsError {
    constructor(message?: string, caller?: Function);
}
export declare class DnsExceptionError extends DnsError {
    constructor(message?: string, caller?: Function);
}