private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.visionai.v1.CustomProcessorSourceInfo,
            com.google.cloud.visionai.v1.CustomProcessorSourceInfo.Builder,
            com.google.cloud.visionai.v1.CustomProcessorSourceInfoOrBuilder>
        getCustomProcessorSourceInfoFieldBuilder() {
      if (customProcessorSourceInfoBuilder_ == null) {
        customProcessorSourceInfoBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.visionai.v1.CustomProcessorSourceInfo,
                com.google.cloud.visionai.v1.CustomProcessorSourceInfo.Builder,
                com.google.cloud.visionai.v1.CustomProcessorSourceInfoOrBuilder>(
                getCustomProcessorSourceInfo(), getParentForChildren(), isClean());
        customProcessorSourceInfo_ = null;
      }
      return customProcessorSourceInfoBuilder_;
    }
<pre>
Source info for customer created processor.
</pre>

<code>.google.cloud.visionai.v1.CustomProcessorSourceInfo custom_processor_source_info = 7;
</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/Processor.java