public Builder mergeEnterpriseWebSearch(
        com.google.cloud.vertexai.api.EnterpriseWebSearch value) {
      if (enterpriseWebSearchBuilder_ == null) {
        if (((bitField0_ & 0x00000010) != 0)
            && enterpriseWebSearch_ != null
            && enterpriseWebSearch_
                != com.google.cloud.vertexai.api.EnterpriseWebSearch.getDefaultInstance()) {
          getEnterpriseWebSearchBuilder().mergeFrom(value);
        } else {
          enterpriseWebSearch_ = value;
        }
      } else {
        enterpriseWebSearchBuilder_.mergeFrom(value);
      }
      if (enterpriseWebSearch_ != null) {
        bitField0_ |= 0x00000010;
        onChanged();
      }
      return this;
    }
<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