import type { AuthupErrorInput } from './types.ts';
import { BaseError } from '@ebec/core';
export declare const AUTHUP_ERROR_INSTANCE: unique symbol;
export declare class AuthupError extends BaseError {
    readonly data?: Record<string, any>;
    constructor(input?: AuthupErrorInput);
    /**
     * `super.toJSON()` already emits the serialized marker chain, but the
     * `data` spread runs after it — re-stamped last so a `data` key cannot
     * displace the genuine chain.
     */
    toJSON(): {
        "@instanceof": string[];
        name: string;
        message: string;
        code: string;
        cause?: unknown;
        errors?: unknown[];
        issues?: readonly import("@ebec/core").Issue[];
    };
}
//# sourceMappingURL=module.d.ts.map