fetch
abstract fun fetchTimelinePositionsForNavigationItems(navigationItems: List<ReaderPublicationNavigationItem>, onSuccess: (List<ColibrioResult<Int>>) -> Unit, onError: (ColibrioException) -> Unit)
abstract suspend fun fetchTimelinePositionsForNavigationItems(navigationItems: List<ReaderPublicationNavigationItem>): ColibrioResult<List<ColibrioResult<Int>>>
Fetch timeline positions for multiple navigation items at once.
Both successful and failed results will be returned.
For more information see fetchTimelinePosition