I come from read Using the new Drupal 8 Migration API / Module and Content Migration: CSV to Drupal 8 the process to create a migration is very clear and its works, but I can't find how to migrate content to a Multilingual site. In the Migrate API overview I can't find any information about this.
So, how can I migrate multilingual content?
UPDATE: I found an example: https://github.com/drupal/drupal/tree/8.3.x/core/modules/migrate/tests/modules/migrate_external_translated_test
I was able for the moment to migrate the english content but not the translations.