/**
 * A request was cancelled — by the caller's `AbortSignal` or a provider-local
 * watchdog. Carries the {@link Flag.Abort} classification structurally so retry
 * logic does not have to regex the message text.
 *
 * The default message is kept byte-identical to the historical
 * `"Request was aborted"` string so any remaining text-based matchers keep
 * working through the migration.
 */
export declare class AbortError extends Error {
    constructor(message?: string, options?: {
        cause?: unknown;
    });
}