public SymbolHistoryMetaDataInternal(SymbolHistoryId historyId)
{
HistoryId = historyId;
Id = historyId.Key;
Chunks = new HashSet <HistoryChunkId>();
GapsConfirmed = new List <DateRange>();
GapsUnconfirmed = new List <DateRange>();
View = new HistoryView(historyId);
}
