private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.vertexai.api.EnterpriseWebSearch,
            com.google.cloud.vertexai.api.EnterpriseWebSearch.Builder,
            com.google.cloud.vertexai.api.EnterpriseWebSearchOrBuilder>
        getEnterpriseWebSearchFieldBuilder() {
      if (enterpriseWebSearchBuilder_ == null) {
        enterpriseWebSearchBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.vertexai.api.EnterpriseWebSearch,
                com.google.cloud.vertexai.api.EnterpriseWebSearch.Builder,
                com.google.cloud.vertexai.api.EnterpriseWebSearchOrBuilder>(
                getEnterpriseWebSearch(), getParentForChildren(), isClean());
        enterpriseWebSearch_ = null;
      }
      return enterpriseWebSearchBuilder_;
    }
<pre>
Optional. Tool to support searching public web data, powered by Vertex AI
Search and Sec4 compliance.
</pre>

<code>
.google.cloud.vertexai.v1.EnterpriseWebSearch enterprise_web_search = 6 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/Tool.java