@java.lang.Override
    public com.google.devtools.cloudtrace.v2.Span.TimeEvent getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }
<pre>
An event describing a message sent/received between Spans.
</pre>

<code>.google.devtools.cloudtrace.v2.Span.TimeEvent.MessageEvent message_event = 3;</code>
java-trace/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/Span.java