private com.google.protobuf.RepeatedFieldBuilderV3<
            com.google.cloud.visionai.v1.FacetBucket,
            com.google.cloud.visionai.v1.FacetBucket.Builder,
            com.google.cloud.visionai.v1.FacetBucketOrBuilder>
        getBucketsFieldBuilder() {
      if (bucketsBuilder_ == null) {
        bucketsBuilder_ =
            new com.google.protobuf.RepeatedFieldBuilderV3<
                com.google.cloud.visionai.v1.FacetBucket,
                com.google.cloud.visionai.v1.FacetBucket.Builder,
                com.google.cloud.visionai.v1.FacetBucketOrBuilder>(
                buckets_, ((bitField0_ & 0x00000004) != 0), getParentForChildren(), isClean());
        buckets_ = null;
      }
      return bucketsBuilder_;
    }
<pre>
Buckets associated with the facet. E.g. for "Team" facet, the bucket
can be 49ers, patriots, etc.
</pre>

<code>repeated .google.cloud.visionai.v1.FacetBucket buckets = 3;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/FacetGroup.java