public com.google.cloud.visionai.v1.FacetValueOrBuilder getBucketStartOrBuilder() {
        if (bucketStartBuilder_ != null) {
          return bucketStartBuilder_.getMessageOrBuilder();
        } else {
          return bucketStart_ == null
              ? com.google.cloud.visionai.v1.FacetValue.getDefaultInstance()
              : bucketStart_;
        }
      }
<pre>
Lower bound of the bucket. NOTE: Only integer type is currently supported
for this field.
</pre>

<code>.google.cloud.visionai.v1.FacetValue bucket_start = 1;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/FacetProperty.java