8List(16);
  for (int i = 0, index = 0; i &lt; parts.length; i++) {
    int value = parts[i];
    if (value == -1) {
      int wildCardLength = 9 - parts.length;
      for (int j = 0; j &lt; wildCardLength; j++) {
        bytes[index] = 0;
        bytes[index + 1] = 0;
        index += 2;
      }
    } else {
      bytes[index] = value &gt;&gt; 8;
      bytes[index + 1] = value &amp; 0xff;
      index += 2;
    }
  }
  return bytes;
}</code></pre>
    </section>

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