This is a Node.js script, written in CoffeeScript. Of course you'll need Node.js and NPM. Additionally, it requires the Coffee Script compiler/interpreter and the Twilio package.
npm install -g coffee-script
npm install twilio
Once everything is ready, you can run the script like that:
coffee twilio-recordings-mass-delete.coffee
If it does not work, compile to JavaScript and run it with Node:
coffee -c twilio-recordings-mass-delete.coffee
node twilio-recordings-mass-delete.js