title: How to correct flow warning: destructuring (Missing annotation)
body: <p>I'm writing a small React Native app and I'm trying to use Flow, but I can't really get a proper tutorial about it anywhere.</p>
  
  <p>I keep getting the error: <code>destructuring (Missing annotation)</code> about the <code>({ station })</code> in the 1st line of this code:</p>
  
  <pre><code>const StationDetail = ({ station }) =&gt; {
    const {
      code,
      label,
    } = station;
  </code></pre>
  
  <p><code>station</code> is a <em>json response</em> and <code>code</code> and <code>label</code> are <code>strings</code> inside that <em>json</em>.</p>
  
  <p>How do I fix the error/warning?</p>