text: public FSTCompletionBuilder(int buckets, BytesRefSorter sorter, int shareMaxTailLength) {if (buckets < 1 || buckets > 255) {throw new IllegalArgumentException("Buckets must be >= 1 and <= 255: "+ buckets);}if (sorter == null) throw new IllegalArgumentException("BytesRefSorter must not be null.");this.sorter = sorter;this.buckets = buckets;this.shareMaxTailLength = shareMaxTailLength;}