export type GatewayRequestErrorSummary = {
    kind: 'AxiosError' | 'NonAxiosError';
    code?: string;
    status?: number;
};
/** Return diagnostics that are safe to log or expose to callers. */
export declare function summarizeGatewayRequestError(error: unknown): GatewayRequestErrorSummary;
/**
 * A request failure that deliberately retains no Axios config, request body,
 * response body, original message, or cause.
 */
export declare class GatewayRequestError extends Error {
    readonly kind: GatewayRequestErrorSummary['kind'];
    readonly code?: string;
    readonly status?: number;
    private constructor();
    static sanitizeAxios<T>(operation: string, error: T): T | GatewayRequestError;
    toJSON(): Record<string, string | number | undefined>;
}
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