private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.visionai.v1.ProcessorConfig,
            com.google.cloud.visionai.v1.ProcessorConfig.Builder,
            com.google.cloud.visionai.v1.ProcessorConfigOrBuilder>
        getNodeConfigFieldBuilder() {
      if (nodeConfigBuilder_ == null) {
        nodeConfigBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.visionai.v1.ProcessorConfig,
                com.google.cloud.visionai.v1.ProcessorConfig.Builder,
                com.google.cloud.visionai.v1.ProcessorConfigOrBuilder>(
                getNodeConfig(), getParentForChildren(), isClean());
        nodeConfig_ = null;
      }
      return nodeConfigBuilder_;
    }
<pre>
Node config.
</pre>

<code>.google.cloud.visionai.v1.ProcessorConfig node_config = 3;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/Node.java