Update app.js

app.js

@@ -1,10 +1,9 @@
 const express = require('express');
 const fetch = require('node-fetch');
 const zlib = require('zlib');
-const stream = require('stream');
 const { promisify } = require('util');
 
-const pipeline = promisify(stream.pipeline);
+const gunzip = promisify(zlib.gunzip);
 
 const PROJECT_ID = process.env.PROJECT_ID;
 const CLIENT_ID = process.env.CLIENT_ID;
@@ -84,9 +83,6 @@ function formatModelName(model) {
   return model;
 }
 
-const { promisify } = require('util');
-const gunzip = promisify(zlib.gunzip);
-
 async function handleRequest(req, res) {
   if (req.method === 'OPTIONS') {
     handleOptions(res);
@@ -187,8 +183,6 @@ async function handleRequest(req, res) {
   }
 }
 
-
-
 function handleOptions(res) {
   res.status(204);
   res.setHeader('Access-Control-Allow-Origin', '*');