code: public void update(final byte[] key, final double[] values) {
      if (key == null || key.length == 0) { return; }
      insertOrIgnore(MurmurHash3.hash(key, seed_)[0] >>> 1, values);
    }
docs: Updates this sketch with a byte[] key and double values.
  The values will be stored or added to the ones associated with the key
  
  @param key The given byte[] key
  @param values The given values