n>
    <span class="sd">&quot;&quot;&quot; Multiplication of value attributes</span>
<span class="sd">    &quot;&quot;&quot;</span>
    <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">copy</span><span class="p">(</span><span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">value</span><span class="o">*</span><span class="n">other</span><span class="o">.</span><span class="n">value</span><span