private void buildPartialOneofs(com.google.devtools.cloudtrace.v2.Span.TimeEvent result) {
        result.valueCase_ = valueCase_;
        result.value_ = this.value_;
        if (valueCase_ == 2 && annotationBuilder_ != null) {
          result.value_ = annotationBuilder_.build();
        }
        if (valueCase_ == 3 && messageEventBuilder_ != null) {
          result.value_ = messageEventBuilder_.build();
        }
      }
<pre>
A time-stamped annotation or message event in the Span.
</pre>

Protobuf type {@code google.devtools.cloudtrace.v2.Span.TimeEvent}
java-trace/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/Span.java