="s2">&quot;alpha&quot;</span><span class="p">:</span> <span class="mf">0.9</span><span class="p">})</span>  <span class="c1"># Valid adjustment</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">model</span><span class="o">.</span><span class="n">alpha</span>
<span class="go">0.9</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">model</span><span class="o">.</span><span class="n">update</span><span class="p">({</span><span class="s2">&quot;alpha&quot;</span><span class="p">:</span> <span