title: Dart's built_value library, how to generate the serializer file in flutter?
body: <ul>
  <li>I've added the built_value dependency.</li>
  <li>I've created a file <code>serializers.dart</code> with the serializer field.</li>
  <li>I've converted one of my data classes to the required format.</li>
  </ul>
  
  <p>How do I actually build the project to generate the <code>serializers.g.dart</code> file?</p>
  
  <p>Thanks</p>