Ruslan Fialkovsky

It was surprise for me that nats.py doesn't have this function. Please add GetRevision() to get a specific revision of the value from Key/Value store.

ZEPPELIN-6171 Add FreeIPA authentication with memberOf attribute for groups maping

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### What is this PR for? This pull request introduces support for LDAP authentication using the memberOf attribute, retrieving user group memberships from LDAP systems like FreeIPA. Problem Previously, Zeppelin's...