pan>
    <span class="token keyword">this</span><span class="token punctuation">.</span><span class="token function">_super</span><span class="token punctuation">(</span><span class="token operator">...</span>arguments<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">set</span><span class="token punctuation">(</span><span class="token string">'items'</span><span clas