public com.google.cloud.visionai.v1.FacetValue.Builder getBucketGranularityBuilder() {
        bitField0_ |= 0x00000002;
        onChanged();
        return getBucketGranularityFieldBuilder().getBuilder();
      }
<pre>
Bucket granularity. NOTE: Only integer type is currently supported for
this field.
</pre>

<code>.google.cloud.visionai.v1.FacetValue bucket_granularity = 2;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/FacetProperty.java