@java.lang.Override
    public Builder clear() {
      super.clear();
      bitField0_ = 0;
      facetId_ = "";
      displayName_ = "";
      if (bucketsBuilder_ == null) {
        buckets_ = java.util.Collections.emptyList();
      } else {
        buckets_ = null;
        bucketsBuilder_.clear();
      }
      bitField0_ = (bitField0_ & ~0x00000004);
      bucketType_ = 0;
      fetchMatchedAnnotations_ = false;
      return this;
    }
<pre>
A group of facet buckets to be passed back and forth between backend &amp;
frontend.
</pre>

Protobuf type {@code google.cloud.visionai.v1.FacetGroup}
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/FacetGroup.java