ink</code> serves as output.</p>
    </section>
    
    <section class="summary source-code" id="source">
      <h2><span>Implementation</span></h2>
      <pre class="language-dart"><code class="language-dart">ByteConversionSink startChunkedConversion(Sink&lt;String&gt; sink) {
  if (sink is StringConversionSink) {
    return _Utf8Base64EncoderSink(sink.asUtf8Sink(false), _urlSafe);
  }
  return _AsciiBase64EncoderSink(sink, _urlSafe);
}</code></pre>
    </section>

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