If you start an asynchronous packaging call, this is the endpoint where you can check the progress of packaging. You will use the packaging key provided in the response of your
package request here.
Packaging status can be one of the following: packaging and completed.
If you issue a synchronous packaging call (by providing
async=0), you don't need to check packaging progress or issue a separate download call to download translations. Synchronous packaging already returns the translation package, instead of a packaging key.