title: Cannot convert value of type [Any]! to type 'MySpecificClass' in coercion: in Swift3 while using for in loop
body: <p>I'm using RDVTabBarController in my project and trying to customise the tab bar controller by using for in loop and It's not convert as RDVTabBarItem class getting error.</p>
  
  <pre><code>for item in tabBarController.tabBar.items as RDVTabBarItem {
              //
          }
  </code></pre>