public static IEnumerable <CacheResult <T> > GetAllEntries <T>([NotNull] this ICacheSection <T> cacheSection)
{
cacheSection.AssertArgumentNotNull(nameof(cacheSection));
var values = cacheSection
.Keys
.Select(key => cacheSection.GetCacheEntry(key))
.Where(cacheResult => !cacheResult.IsEmpty());
return(values);
}