function _getFocusedMultiRangeInlineEditor() {
        
        var focusedMultiRangeInlineEditor = null,
            result = EditorManager.getFocusedInlineWidget();
        
        if (result) {
            var focusedWidget = result.widget;
            if (focusedWidget && focusedWidget instanceof MultiRangeInlineEditor) {
                focusedMultiRangeInlineEditor = focusedWidget;
            }
        }
        
        return focusedMultiRangeInlineEditor;
    }
Returns the currently focused MultiRangeInlineEditor.
@returns {MultiRangeInlineEditor}