Packagers

Packagers are the recommended way to move data in and out of MLRun functions. Instead of manually handling DataItems, artifact uploads, and serialization code, you write standard Python functions with type hints and returning values — and MLRun automatically handles input parsing, output logging, and artifact creation.

In this section

• Packagers overview
• Using packagers to automate I/O in a gen AI agent pipeline
• Creating custom packagers