code: int countTag(long i1, long i2, long tag) {
  		int tagCount = 0;
  		for (int posInBucket = 0; posInBucket < CuckooFilter.BUCKET_SIZE; posInBucket++) {
  			if (checkTag(i1, posInBucket, tag))
  				tagCount++;
  			if (checkTag(i2, posInBucket, tag))
  				tagCount++;
  		}
  		return tagCount;
  	}
docs: Similar to checkTag() except it counts the number of matches in the
  buckets.