How to find out the group administrator using VK.API?

Question

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If the group is open and its administrator is not hidden, how can I find out programmatically?
There is no such method in VK.API, what should I do?
https://new.vk.com/dev/methods

Answer 1

Administrators are hidden for all groups, only contacts are open. If you need information from this block, call groups.getById with the contacts key in the fields field