span><span class="token operator">:</span> <span class="token keyword">null</span><span class="token punctuation">,</span>
  <span class="token literal-property property">lastName</span><span class="token operator">:</span> <span class="token keyword">null</span><span class="token punctuation">,</span>
  <span class="token literal-property property">age</span><span class="token operator">:</span> <span class="token keyword">null</span><span class="token punctuation">,</span>
  <span class="token literal-pro