internal static IdAndSession GetFolderIdAndSession(BaseFolderId folderId, MailboxSession mailboxSession, IdConverter converter)
 {
     if (folderId != null)
     {
         return(converter.ConvertFolderIdToIdAndSession(folderId, IdConverter.ConvertOption.IgnoreChangeKey));
     }
     return(new IdAndSession(mailboxSession.GetDefaultFolderId(DefaultFolderType.AllItems), mailboxSession));
 }