问题 I want to use Google libphonenumber in my angular project using Typescript. I have searched a lot on internet and found a lot of stuff but could not find anything that could serve my purpose. Most of the content available shows the code in JavaScript. If I use the same code in typescript, it shows lot of error like 'cannot find name require' or 'module not found'. Please tell me how/where/what to write the code. Also, plz tell me which package to install as there are many - libphonenumber,