Observability plugin : How to import/export notebooks ? (API ?)

Hi Opensearch community,

We are currently migrating from one Opensearch cluster to a new one.

Until now, we were mostly able to automate the transfer of vizualisations, dashboards or monitors thanks to API requests. Yet, we are now short on solution to migrate any configuration of the Observability plugins.

In the documentation there is no mention to export Notebooks configuration or import it. As far as my understanding of the code in the Git go, the plugin seems to have an internal API to manage it, like with alerting plugin.

Does anyone can provide or link an example list of curl requests to manage Notebooks ?