I'm creating a custom importer with migrate from json files. I've several migrate sources for nodes (called: articoli, canti, autori) and one source for comments (called: commenti).
I'm using migration plugin to set relationship between entities, but in the yml for comment how should I set multiples sources?
In documentation I find this:
process: uid: plugin: migration migration: - users - members source_ids: users: - author members: - author
I don't understand if migrate cycles for every migration (users, members) using these source_ids and, if matches, goes to next element.