@java.lang.Override
    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      for (int i = 0; i < timeEvent_.size(); i++) {
        size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, timeEvent_.get(i));
      }
      if (droppedAnnotationsCount_ != 0) {
        size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, droppedAnnotationsCount_);
      }
      if (droppedMessageEventsCount_ != 0) {
        size +=
            com.google.protobuf.CodedOutputStream.computeInt32Size(3, droppedMessageEventsCount_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSize = size;
      return size;
    }
<pre>
The number of dropped message events in all the included time events.
If the value is 0, then no message events were dropped.
</pre>

<code>int32 dropped_message_events_count = 3;</code>

@return The droppedMessageEventsCount.
java-trace/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/Span.java