mLevel" class="property">
          <span class="name"><a href="dart-io/ZLibCodec/memLevel.html">memLevel</a></span>
          <span class="signature">&#8594; <a href="dart-core/int-class.html">int</a></span>         
        </dt>
        <dd>
          Specifies how much memory should be allocated for the internal compression
state. <code>1</code> uses minimum memory but is slow and reduces compression ratio;
<code>9</code> uses maximum memory for optimal speed. The default value is <code>8</code>. <a hre