protected abstract static class UnmappedSignificantTerms.Bucket extends InternalSignificantTerms.Bucket<UnmappedSignificantTerms.Bucket>
InternalTerms.Bucket can have a self type but
UnmappedTerms doesn't ever need to build it because it never returns any buckets.InternalSignificantTerms.Bucket.Reader<B extends InternalSignificantTerms.Bucket<B>>ToXContent.DelegatingMapParams, ToXContent.MapParams, ToXContent.ParamsWriteable.Writer<V>aggregationsEMPTY_PARAMSequals, getAggregations, getDocCount, getSignificanceScore, getSubsetDf, getSubsetSize, getSupersetDf, getSupersetSize, hashCode, keyToXContent, reduce, toXContentgetPropertyclone, finalize, getClass, notify, notifyAll, toString, wait, wait, waitgetKeyAsNumbergetKey, getKeyAsStringisFragment