AdminAddOrSetPrimaryEmailAddress is used by admins to add or set a user's primary email address.

DeleteAvatar deletes the user's custom avatar.

DeleteInactiveUsers deletes all inactive users and their email addresses.

DeleteUser completely and permanently deletes everything of a user, but issues/comments/pulls will be kept and shown as someone has been deleted, unless the user is younger than USER_DELETE_WITH_COMMENTS_MAX_DAYS.

RenameUser renames a user.

UploadAvatar saves custom avatar for user.