public IPublishedContent?GetByRoute(bool preview, string route, bool?hideTopLevelNode = null, string?culture = null)
{
if (route == null)
{
throw new ArgumentNullException(nameof(route));
}
IAppCache?cache = preview == false || PublishedSnapshotService.FullCacheWhenPreviewing
? _elementsCache
: _snapshotCache;
var key = CacheKeys.ContentCacheContentByRoute(route, preview, culture);
return(cache?.GetCacheItem(key, () => GetByRouteInternal(preview, route, hideTopLevelNode, culture)));
}