public Builder setContextualTranslationEnabled(boolean value) {

      contextualTranslationEnabled_ = value;
      bitField0_ |= 0x00000004;
      onChanged();
      return this;
    }
<pre>
Optional. If set to true, the glossary will be used for contextual
translation.
</pre>

<code>bool contextual_translation_enabled = 4 [(.google.api.field_behavior) = OPTIONAL];
</code>

@param value The contextualTranslationEnabled to set.
@return This builder for chaining.
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/TranslateTextGlossaryConfig.java