private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.vertexai.api.BlurBaselineConfig,
            com.google.cloud.vertexai.api.BlurBaselineConfig.Builder,
            com.google.cloud.vertexai.api.BlurBaselineConfigOrBuilder>
        getBlurBaselineConfigFieldBuilder() {
      if (blurBaselineConfigBuilder_ == null) {
        blurBaselineConfigBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.vertexai.api.BlurBaselineConfig,
                com.google.cloud.vertexai.api.BlurBaselineConfig.Builder,
                com.google.cloud.vertexai.api.BlurBaselineConfigOrBuilder>(
                getBlurBaselineConfig(), getParentForChildren(), isClean());
        blurBaselineConfig_ = null;
      }
      return blurBaselineConfigBuilder_;
    }
<pre>
Config for XRAI with blur baseline.

When enabled, a linear path from the maximally blurred image to the input
image is created. Using a blurred baseline instead of zero (black image) is
motivated by the BlurIG approach explained here:
https://arxiv.org/abs/2004.03383
</pre>

<code>.google.cloud.vertexai.v1.BlurBaselineConfig blur_baseline_config = 3;</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/XraiAttribution.java