> <span class="modifier_kind"><span class="modifier"></span> <span class="kind">def</span></span> <span class="symbol"><span class="name">getCoeff</span><span class="tparams">[<span name="RD">RD &lt;: <span name="shapeless.HList" class="extype">HList</span></span>, <span name="YY">YY</span>]</span><span class="params">(<span name="gen">gen: <a href="GeneratorNodeFamily.html" name="provingground.learning.GeneratorNodeFamily" id="provingground.learning.GeneratorNodeFamily" class="extype">GeneratorNodeFamily</