title: Vue 3 Typescript warning on Vue $emit and $event "Object is possibly 'null'"
body: <p>How to get rid of the TS warning in Vue template?</p>
  <p><a href="https://i.stack.imgur.com/MXcNy.png" rel="noreferrer"><img src="https://i.stack.imgur.com/MXcNy.png" alt="enter image description here" /></a></p>
  <p>I'm using the example provided in <a href="https://v3.vuejs.org/guide/component-custom-events.html#multiple-v-model-bindings" rel="noreferrer">Vue 3 manual</a></p>
  <pre class="lang-html prettyprint-override"><code>&lt;input 
     type=&quot;text&quot;
     :value=&quot;title&quot;
     @input=&quot;$emit('update:title', $event.target.value)&quot;
  &gt;
  </code></pre>
  <p>Note: This only an TS warning, this works as it should.</p>