Node.js throws "btoa is not defined" error

In my node.js application I did an npm install btoa-atob so that I could use the btoa() and atob() functions which are native in client-side javascript but for some reason weren't included in node. The new directory showed up in my node_modules folder, which itself is in root alongside app.js. Then I made sure to add btoa-atob as a dependency in my package.json file which is in root. However, for

[plasma0713]

“The 'btoa-atob' module does not export a programmatic interface, it only provides command line utilities.”