anchor.diff:    void pushPhysicalShape({ Path path, double elevation, Color color, Color shadowColor, Clip clipBehavior = defaultClipBehavior}) {
       _pushPhysicalShape(path, elevation, color.value, shadowColor?.value ?? 0xFF000000, clipBehavior.index);
     }
  -  void _pushPhysicalShape(Path path, double elevation, int color, int shadowColor, int clipMode) native
  +  void _pushPhysicalShape(Path path, double elevation, int color, int shadowColor, int clipBehavior) native
       'SceneBuilder_pushPhysicalShape';
   
     /// Ends the effect of the most recently pushed operation.
  
positive.code:     assert(clipBehavior != Clip.none);
      _pushClipPath(path, clipBehavior.index);
    }
    void _pushClipPath(Path path, int clipMode) native 'SceneBuilder_pushClipPath';
  
    /// Pushes an opacity operation onto the operation stack.
    ///
  
negative.code:                      double right,
                       double top,
                       double bottom,
                       int clipBehavior) native 'SceneBuilder_pushClipRect';
  
    /// Pushes a rounded-rectangular clip operation onto the operation stack.
    ///
  