public Builder clearGoogleSearch() {
      bitField0_ = (bitField0_ & ~0x00000004);
      googleSearch_ = null;
      if (googleSearchBuilder_ != null) {
        googleSearchBuilder_.dispose();
        googleSearchBuilder_ = null;
      }
      onChanged();
      return this;
    }
<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