How can I use the built-in custom errors?

[Ptomerty]

I am rather new to NodeJS, so forgive me for any basic errors.

That said, I've been trying to see if a thrown error is of type AttachmentNotFoundError. However, I don't think this error type is actually exported anywhere, and thus any attempt to use instanceof AttachmentNotFoundError results in TypeError: Right-hand side of 'instanceof' is not an object or ReferenceError: AttachmentNotFoundError is not defined.

Is there any way I can import this from src/types/errors? Thanks!