@java.lang.Override
    public com.google.devtools.cloudtrace.v2.AttributeValue build() {
      com.google.devtools.cloudtrace.v2.AttributeValue result = buildPartial();
      if (!result.isInitialized()) {
        throw newUninitializedMessageException(result);
      }
      return result;
    }
<pre>
The allowed types for `[VALUE]` in a `[KEY]:[VALUE]` attribute.
</pre>

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