ken constant">DS</span><span class="token punctuation">.</span>RESTSerializer<span class="token punctuation">.</span><span class="token function">extend</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
  <span class="token function">normalize</span><span class="token punctuation">(</span><span class="token parameter">typeHash<span class="token punctuation">,</span> hash</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    hash<span