A future forFConcertAdmin_GetSessionActivitiesResponsewhich contains up toAbs(ActivityCount)activities or an error if it fails. The array of payload in the response can always be decoded asFConcertSyncActivityobjects. If bIncludeDetails is true, 'package' and 'transaction' can be decoded respectively asFConcertSyncPackageActivityandFConcertSyncTransactionActivity, providing extra information. The transaction event will contains the full transaction data. The package event contains the package event meta data only.