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				// @flow

				function base64EncodeBuffer(data: Uint8Array): string {
				return btoa(String.fromCharCode(...data));
				}

				function base64DecodeBuffer(base64String: string): Uint8Array {
				const binaryString = atob(base64String);
				return new Uint8Array(binaryString.length).map((_, i) =>
				binaryString.charCodeAt(i),
				);
				}

				export { base64EncodeBuffer, base64DecodeBuffer };