private com.google.protobuf.MapField<java.lang.String, java.lang.String> internalGetLabels() {
      if (labels_ == null) {
        return com.google.protobuf.MapField.emptyMapField(LabelsDefaultEntryHolder.defaultEntry);
      }
      return labels_;
    }
<pre>
Optional. Glossary to be applied. The glossary must be
within the same region (have the same location-id) as the model, otherwise
an INVALID_ARGUMENT (400) error is returned.
</pre>

<code>
.google.cloud.translation.v3beta1.TranslateTextGlossaryConfig glossary_config = 7 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-translate/proto-google-cloud-translate-v3beta1/src/main/java/com/google/cloud/translate/v3beta1/TranslateTextRequest.java