public com.google.devtools.cloudtrace.v2.TruncatableStringOrBuilder
            getDescriptionOrBuilder() {
          if (descriptionBuilder_ != null) {
            return descriptionBuilder_.getMessageOrBuilder();
          } else {
            return description_ == null
                ? com.google.devtools.cloudtrace.v2.TruncatableString.getDefaultInstance()
                : description_;
          }
        }
<pre>
A user-supplied message describing the event. The maximum length for
the description is 256 bytes.
</pre>

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