title: Kotlin extensions for Android: How to use bundleOf
body: <p>Documentation says:</p>
  
  <pre><code>fun bundleOf(vararg pairs: Pair&lt;String, Any?&gt;): Bundle
  </code></pre>
  
  <blockquote>
    <p>Returns a new Bundle with the given key/value pairs as elements.</p>
  </blockquote>
  
  <p>I tried:</p>
  
  <pre><code>   val bundle = bundleOf {
         Pair("KEY_PRICE", 50.0)
         Pair("KEY_IS_FROZEN", false)
     }
  </code></pre>
  
  <p>But it is showing error.</p>