AddOrUpdateUser - adds a new user or updates an existing one.

Add restriction type to group.

AddVerifiedUser - add user to verified list.

DeleteUser - removes a user from the repository.

Get restriction type from group.

GetUser - returns user data.

RemoveVerifiedUser removes a user from VerifiedUsersList by group ID and user ID.

UpdateField - updates specified user fields.

Mutex for synchronization.

Admin User ID - Group ID.

Struct paramets: ID Group - auth parametrs.

VerifiedUsersList - list of verified users Id Chat Group -> User Data .

UserChangeEvent - user data change event structure.

Struct for the parametrs of verification.

User data.