/// <summary>
/// Query popular topics expirations
/// </summary>
/// <param name="timeRange">Time range</param>
/// <param name="hostAppHandle">Host app handle</param>
/// <param name="expiration">Expiration time</param>
/// <returns>Topic feed entities</returns>
public async Task <IList <ITopicFeedEntity> > QueryPopularTopicsExpirations(TimeRange timeRange, string hostAppHandle, DateTime expiration)
{
CTStore store = await this.tableStoreManager.GetStore(ContainerIdentifier.PopularTopics);
RankFeedTable table = this.tableStoreManager.GetTable(ContainerIdentifier.PopularTopics, TableIdentifier.PopularTopicsExpirationsFeed) as RankFeedTable;
string feedKey = this.GetPopularTopicsFeedKey(timeRange, hostAppHandle);
var result = await store.QueryRankFeedByScoreAsync(table, ContainerIdentifier.PopularTopics.ToString(), feedKey, 0, expiration.ToFileTime());
var convertedResults = result.Select(item => StoreSerializers.MinimalTopicRankFeedEntityDeserialize(item.ItemKey));
return(convertedResults.ToList <ITopicFeedEntity>());
}