export declare const delay: (ms: number) => Promise<unknown>;
/**
 * Retry an operation with configurable retries and delay
 * @param operation - The async operation to retry
 * @param options - Configuration for retries
 */
export declare const withRetry: <T>(operation: () => Promise<T>, options?: {
    maxRetries?: number;
    delayMs?: number;
}) => Promise<T>;
export declare const race: <T>(operation: () => Promise<T>, timeoutMs?: number) => Promise<T>;
export declare const plejdChallageResp: (key: Buffer, chal: Buffer) => Buffer;
export declare const plejdEncodeDecode: (key: Buffer, addressBuffer: Buffer, data: Buffer) => Buffer;