public NewRelicSpanBatch(IEnumerable <NewRelicSpan> spans, NewRelicSpanBatchCommonProperties commonProperties)
 {
     CommonProperties = commonProperties;
     Spans            = spans;
 }
 public NewRelicSpanBatch(IEnumerable <NewRelicSpan> spans)
 {
     CommonProperties = new NewRelicSpanBatchCommonProperties(null);
     Spans            = spans;
 }