 class="typeNameLink">Opt</span></a>&lt;T&gt; (implements java.io.Serializable)</li>
<li class="circle">hydra.util.<a href="Tuple.html" title="class in hydra.util"><span class="typeNameLink">Tuple</span></a>
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<li class="circle">hydra.util.<a href="Tuple.Tuple0.html" title="class in hydra.util"><span class="typeNameLink">Tuple.Tuple0</span></a>
<ul>
<li class="circle">hydra.util.<a href="Tuple.Tuple1.html" title="class in hydra.util"><span class="typeNameLink">Tuple.Tuple1</span></a>&lt;T1&gt;
<ul>
<li c