public Builder addTimeEvent(
          com.google.devtools.cloudtrace.v2.Span.TimeEvent.Builder builderForValue) {
        if (timeEventBuilder_ == null) {
          ensureTimeEventIsMutable();
          timeEvent_.add(builderForValue.build());
          onChanged();
        } else {
          timeEventBuilder_.addMessage(builderForValue.build());
        }
        return this;
      }
<pre>
A collection of `TimeEvent`s.
</pre>

<code>repeated .google.devtools.cloudtrace.v2.Span.TimeEvent time_event = 1;</code>
java-trace/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/Span.java