private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.visionai.v1.SearchConfig,
            com.google.cloud.visionai.v1.SearchConfig.Builder,
            com.google.cloud.visionai.v1.SearchConfigOrBuilder>
        getSearchConfigFieldBuilder() {
      if (searchConfigBuilder_ == null) {
        searchConfigBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.visionai.v1.SearchConfig,
                com.google.cloud.visionai.v1.SearchConfig.Builder,
                com.google.cloud.visionai.v1.SearchConfigOrBuilder>(
                getSearchConfig(), getParentForChildren(), isClean());
        searchConfig_ = null;
      }
      return searchConfigBuilder_;
    }
<pre>
Required. The search config to create.
</pre>

<code>
.google.cloud.visionai.v1.SearchConfig search_config = 2 [(.google.api.field_behavior) = REQUIRED];
</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/CreateSearchConfigRequest.java