import { MultiCaptchaError } from './base.error.js';
export declare class CaptchaServiceError extends MultiCaptchaError {
    readonly service: string;
    constructor(service: string, message: string);
}
export declare class InsufficientBalanceError extends CaptchaServiceError {
}
export declare class InvalidApiKeyError extends CaptchaServiceError {
}
export declare class IpBlockedError extends CaptchaServiceError {
}