export declare function sleep(ms: number): Promise<void>;
/**
 * Safely converts various input types to BigInt
 * @param value Value to convert to BigInt
 * @returns BigInt representation of the value, or BigInt(0) for null/undefined
 */
export declare function toBigInt(value: string | number | bigint | null | undefined): bigint;
/**
 * Safely converts BigInt to number, preserving precision for safe integers
 * @param value BigInt value to convert
 * @returns Number if within safe range, otherwise returns the BigInt as-is for JSON serialization
 */
export declare function bigIntToNumber(value: bigint): number | any;