an><span class="token operator">:</span> <span class="token punctuation">{</span>
    <span class="token function">toggleBody</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
      <span class="token keyword">this</span><span class="token punctuation">.</span><span class="token function">toggleProperty</span><span class="token punctuation">(</span><span class="token string">'isExpanded'</span><span class="token punctuation">)</sp