title: Get WKInterfaceController reference while pushing interfaceController
body: <p>I have a Dashboard Controller in Apple watch and I am navigating to next <strong>WKInterfaceController</strong>  without using <strong>Segue</strong>.</p>
  
  <pre><code>pushControllerWithName("Messages_Detail",context: ["Data": messageDetailData])
  </code></pre>
  
  <p>Now I need to pass data from <strong>Dashboard</strong> to <strong>Messages_Detail</strong> later on after it has been loaded. I don't have any reference of it in Dashboard. How can I pass data to it? </p>