public ValueCase getValueCase() {
        return ValueCase.forNumber(valueCase_);
      }
<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