title: Define MutableList of an object
body: <p>I have this block of code:</p>
  
  <pre><code>val page = object : AbstractViewRenderer(this, R.layout.pdf_page) {
      private var title: String? = null
  
      override fun initView(view: View) {}
  }
  </code></pre>
  
  <p>Now I want to make a mutable list of <code>object : AbstractViewRenderer(this, R.layout.pdf_page)</code>.</p>
  
  <p>I mean something like this:</p>
  
  <pre><code>val page[] : MutableList&lt;object : AbstractViewRenderer&gt; = ...
  </code></pre>
  
  <p>How to do it? What should I use?</p>