perator">:</span> <span class="token constant">DS</span><span class="token punctuation">.</span><span class="token function">attr</span><span class="token punctuation">(</span><span class="token string">'date'</span><span class="token punctuation">,</span> <span class="token punctuation">{</span>
    <span class="token function">defaultValue</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> <span class="token keyword">return</span