public com.google.cloud.vertexai.api.Tool.GoogleSearch.Builder getGoogleSearchBuilder() {
      bitField0_ |= 0x00000004;
      onChanged();
      return getGoogleSearchFieldBuilder().getBuilder();
    }
<pre>
Optional. GoogleSearch tool type.
Tool to support Google Search in Model. Powered by Google.
</pre>

<code>
.google.cloud.vertexai.v1.Tool.GoogleSearch google_search = 7 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/Tool.java