eyword">import</span> <span class="token constant">DS</span> <span class="token keyword">from</span> <span class="token string">'ember-data'</span><span class="token punctuation">;</span>

<span class="token keyword">export</span> <span class="token keyword">default</span> <span class="token constant">DS</span><span class="token punctuation">.</span>Model<span class="token punctuation">.</span><span class="token function">extend</span><span class="token punctuation">(</span><span class="token punctuation">{