Run Metaflow Run: Dive into Metaflow Runner API

Explore the Metaflow Runner API and learn how to run and manage Metaflow runs programmatically. This video covers the Runner and NBRunner classes. These can be used in both blocking and non-blocking APIs, to start runs, performing argument checks, passing parameters, and retrieving returned values. NBRunner is a wrapper over Runner, allowing you to refer to a flow defined in a notebook cell instead of a file. Watch to understand the various use-cases and functionalities of both the Runner and NBRunner APIs with detailed demos.

[@rkenne1391]

It would be helpful to start by explaining why we need a runner