/span><span class="p">:</span> <span class="nb">float</span><span class="p">,</span> <span class="n">lambda_</span><span class="p">:</span> <span class="nb">float</span><span class="p">):</span>
<span class="lineno">20</span>        <span class="bp">self</span><span class="o">.</span><span class="n">lambda_</span> <span class="o">=</span> <span class="n">lambda_</span>
<span class="lineno">21</span>        <span class="bp">self</span><span class="o">.</span><span class="n">gamma</span> <span class="o">=</sp