an class="o">=</span> <span class="n">height</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">_area</span> <span class="o">=</span> <span class="n">width</span> <span class="o">*</span> <span class="n">height</span>

    <span class="nd">@property</span>
    <span class="c1"># moved the logic for returning area to a separate method</span>
    <span class="k">def</span> <span class="nf">area</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
