public async Task <VersionedServiceResult <IReadOnlyCollection <Venue> > > GetVenues(long?currentVersion, Guid currentMemberId, Guid chapterId)
{
await _authorizationService.AssertMemberIsChapterMember(currentMemberId, chapterId);
return(await _cacheService.GetOrSetVersionedCollection(
() => _venueRepository.GetVenues(chapterId),
() => _venueRepository.GetVenuesVersion(chapterId),
currentVersion,
chapterId));
}