title: JSDoc typedef in a separate file
body: <p>Can I define all custom types in a separate file (e.g. <code>types.jsdoc</code>), so that they can be reused throughout the application? What's the right way to do it?</p>
  
  <pre><code>/**
   * 2d coordinates.
   * @typedef {Object} Coordinates
   * @property {Number} x - Coordinate x.
   * @property {Number} y - Coordinate y.
   */
  </code></pre>