code: boolean findTag(long i1, long i2, long tag) {
  		for (int i = 0; i < CuckooFilter.BUCKET_SIZE; i++) {
  			if (checkTag(i1, i, tag) || checkTag(i2, i, tag))
  				return true;
  		}
  		return false;
  	}
docs: Finds a tag if present in two buckets.
  
  @param i1
  first bucket index
  @param i2
  second bucket index (alternate)
  @param tag
  tag
  @return true if tag found in one of the buckets