private async Task <DateTime> GetDateRangeStartDateAsync(ITaskExecutionContext taskExecutionContext)
        {
            var lastBlock = await taskExecutionContext.GetLastListBlockAsync <Journey, BatchDatesHeader>();

            if (lastBlock == null)
            {
                return(_configuration.FirstRunDate);
            }
            else
            {
                return(lastBlock.Header.ToDate);
            }
        }