How to load library in Afterburner job

I am using Jets afterburner mode.
I have created a job in .jets/project/app/job/sync_job.rb
It works now.

But I want to call the library methods in the job.

Library files are in [root]lib/mylib/utils.rb

I am using these libraries in my controllers, app/controllers/products_controller.rb

Is there any way to use this library in both controllers and jobs?

Thank you.