/**
 * Error thrown by the API layer when a request resolves with a non-2xx status.
 * Carries the HTTP status so callers can branch (e.g. distinguish 401/403 from
 * 5xx) instead of collapsing every failure into one generic message.
 */
export declare class ApiError extends Error {
    readonly status: number;
    /**
     * Creates an ApiError carrying the failed response status.
     * @param {number} status - The HTTP status code of the failed response.
     * @param {string} message - A human-readable error message.
     */
    constructor(status: number, message: string);
}
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