message: trying safer Buffer.from instead of new Buffer
diff: @@ -24,14 +24,12 @@ exports.handler = async function(event:any) {
  };
  let synthesis = await polly.synthesizeSpeech(params).promise();
  + let audioStreamBuffer = Buffer.from(synthesis.AudioStream);
  - let audioStream = new Buffer(synthesis.AudioStream);
  - let base64data = audioStream.toString('base64');
  -
  - return sendVoicdRes(200, base64data);
  + return sendVoiceRes(200, audioStreamBuffer.toString('base64'));
  };
  -const sendVoicdRes = (status:number, body:string) => {
  +const sendVoiceRes = (status:number, body:string) => {
  var response = {
  statusCode: status,
  headers: {
  