If you were looking for a paper on the file handling (I/O), the seminal paper is:

The way you label a link determines how easily a reader can understand its purpose without needing to click it first.

When drafting an email, it is often better to link to a document (like a Google Doc or OneDrive file) rather than attaching a large file to keep the email size manageable.

go generate ./...

Depending on which "Drafts" you are using, the process for linking files or documents varies: Drafts (Agile Tortoise App) If you are using the Drafts capture app on iOS or Mac:

import "path/filepath"