const fs = require('fs');
const content = fs.readFileSync('D:/cumin/ghaymah_dns_net_sec_tests/ghaymah_bundle.js', 'utf8');

const idx = content.indexOf('async function lDe', 1950000);
if (idx !== -1) {
  console.log(content.substring(idx + 500, idx + 1800));
}