export declare function fromUtf8(str: string): Uint8Array;
export declare function toUtf8(bytes: Uint8Array): string;
export declare function fromBase64(str: string): Uint8Array;
export declare function toBase64(bytes: Uint8Array): string;
export declare function fromHex(str: string): Uint8Array;
export declare function toHex(bytes: Uint8Array): string;
export declare function toBigInt(bytes: Uint8Array): bigint;
export declare function fromBigInt(i: bigint): Uint8Array;
export declare function fromAscii(str: string): Uint8Array;
export declare function toAscii(bytes: Uint8Array): string;