export/import sprints on a board

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Hi all,

Is there a way to export sprints (or the board with the sprints) from an instance of Jira and import it to another instance ??

I try to migrate a project and I have troubles on this step !!

I use a python script to create my sprints and move the issues inside.

And I use a groovy script to update the status (future->active->closed) and the completedDate.

It works pretty well but I do not know how I can change the user who ended the sprint and the sections are bad :

ex: "Issues completed outside of this sprint" instead of "Completed Issues" (because of the dates I guess)

And the graph does not work.

So if someone can help me or give me some clues

Thanks