public static UInt32 GetPageSize( this HistoricalRequestBase request) => request.Pagination.Size ?? MaxPageSize;
public static DateTime GetValidatedFrom( this HistoricalRequestBase request) => getValidatedDate(request.TimeInterval.From, nameof(request.TimeInterval.From));
public static DateTime GetValidatedInto( this HistoricalRequestBase request) => getValidatedDate(request.TimeInterval.Into, nameof(request.TimeInterval.Into));