="desc markdown">
          <p>Returns the decoder of <code>this</code>, converting from <code>T</code> to <code>S</code>.</p>
<p>It may be stateful and should not be reused.</p>
        </section>
                <section class="summary source-code" id="source">
          <h2><span>Implementation</span></h2>
          <pre class="language-dart"><code class="language-dart">Base64Decoder get decoder =&gt; const Base64Decoder();</code></pre>
        </section>
</section>
        
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