declare function checkPlatform(): void;
declare function bufferDecode(b: ArrayBuffer): string;
declare function bufferEncode(s: string): ArrayBuffer;
declare function base64Encode(b: BufferSource): string;
declare function base64Decode(s: string): ArrayBuffer;
export { base64Decode, base64Encode, bufferDecode, bufferEncode, checkPlatform, };