/**
 * Error classification for Telegram draft streaming.
 */
export declare function extractTelegramErrorText(err: unknown): string;
export declare function shouldFallbackFromDraftTransport(err: unknown): boolean;
export declare function isTelegramThreadNotFoundError(err: unknown): boolean;
export declare function isSafeToRetrySendError(err: unknown): boolean;
export declare function isTelegramClientRejection(err: unknown): boolean;