private IEnumerable <string> BuildExtensionRows(RowBuilder rowBuilder)
        {
            var multimedia = fixture.GetMultimediaAsync().Result;

            foreach (var media in multimedia)
            {
                yield return(rowBuilder.AddField(media.Id)
                             .AddField(media.Type)
                             .AddField(media.Format)
                             .AddField(media.Identifier)
                             .Build());
            }
        }
        private IEnumerable <string> BuildCoreRows(RowBuilder rowBuilder)
        {
            var occurrences = fixture.GetOccurrencesAsync().Result;

            foreach (var occurrence in occurrences)
            {
                yield return(rowBuilder.AddField(occurrence.OccurrenceID)
                             .AddField(occurrence.BasisOfRecord)
                             .AddField(occurrence.ScientificName)
                             .AddField(occurrence.EventDate.ToString("yyyy-MM-dd"))
                             .AddField(occurrence.DecimalLatitude)
                             .AddField(occurrence.DecimalLongitude)
                             .Build());
            }
        }