export declare function sha256(data: Uint8Array): Promise<Uint8Array>;
export declare function stripNullBytes(string: string): string;
export declare function uint8ArrayToBigInt(uint8Array: Uint8Array): bigint;
export declare function isVoiAddress(address: string): boolean;
export declare function namehash(name: string): Promise<Uint8Array>;
export declare function bigIntToUint8Array(value: bigint): Uint8Array;