anchor.diff:    /// For less common operations, consider using a [PopupMenuButton] as the
     /// last action.
     ///
  -  /// For example:
  +  /// ## Sample code
     ///
     /// ```dart
  -  /// return new Scaffold(
  -  ///   body: new CustomView(
  +  /// new Scaffold(
  +  ///   body: new CustomScrollView(
     ///     primary: true,
     ///     slivers: <Widget>[
     ///       new SliverAppBar(
  
positive.code:   ///       // ...rest of body...
    ///     ],
    ///   ),
    /// );
    /// ```
    final List<Widget> actions;
  
  
negative.code:   /// For less common operations, consider using a [PopupMenuButton] as the
    /// last action.
    ///
    /// ## Sample code
    ///
    /// ```dart
    /// new Scaffold(
    ///   appBar: new AppBar(
    ///     title: new Text('Hello World'),
    ///     actions: <Widget>[
    ///       new IconButton(
    ///         icon: new Icon(Icons.shopping_cart),
    ///         tooltip: 'Open shopping cart',
    ///         onPressed: () {
    ///           // ...
    ///         },
    ///       ),
    ///     ],
    ///   ),
    /// )
    /// ```
    final List<Widget> actions;
  
  