How to easily migrate sub-wiki to another server XWIKI v.12

Dear community,
I want to move design template, users, content, xwiki settings to the another server. We can say I need to migrate from development to production. I would like to move this sub-wiki to another server as sub-wiki again. I did read the documentation for xwiki backup/restore here:(
But how can I move sub-wiki o the target wiki again as sub-wiki?

Thank you