Message Mixer step 2

I can’t figure out how to complete step 2 of the Message Mixer lesson. It is over my head.

“Now, to turn encryptors.js into a module, its functions must be exported.
Inside encryptors.js, assign each encryption function as a property of the module.exports object.”

https://www.codecademy.com/courses/learn-intermediate-javascript/projects/message-mixer-node

any help would be appreciated