@java.lang.Override
        public Builder mergeFrom(com.google.protobuf.Message other) {
          if (other instanceof com.google.devtools.cloudtrace.v2.Span.TimeEvent.Annotation) {
            return mergeFrom((com.google.devtools.cloudtrace.v2.Span.TimeEvent.Annotation) other);
          } else {
            super.mergeFrom(other);
            return this;
          }
        }
<pre>
Text annotation with a set of attributes.
</pre>

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