use Partial in nested property with typescript : <p>Say I have a type like this;</p>

<pre><code>interface State {
  one: string,
  two: {
    three: {
      four: string
    },
    five: string
  }
}
</code></pre>

<p>I make state Partial like this <code>Partial&lt;State&gt;</code></p>

<p>But how can I make on of the nested properties partial, for example if I wanted to make <code>two</code> also partial.</p>

<p>How would I do this?</p>
