export declare const RETRYABLE_NUMERIC_CODES: Set<number>;
export declare const RETRYABLE_TRANSIENT_CODES: Set<string>;
export declare function toUpperStringCode(candidate: unknown): string | undefined;
export declare function getNumericErrorCode(error: unknown): number | undefined;
export declare function shouldRetry(error: unknown): boolean;
export declare function getRetryDelayMs(attempt: number): number;
export declare function canRetryAttempt(attempt: number, maxRetries: number, error: unknown): boolean;