text: //  Created by David Phillip Oster on 9/29/20.
  // Apache 2 license
  #import <Cocoa/Cocoa.h>
  
  @class Document;
  
  // A separate class since Service menu support must be in a subclass of NSResponder, and NSDocument isn't.
  @interface DocumentResponder : NSResponder
  
  // This uses the Document to get to the filteredModel: the data backing the outlineView.
  @property(weak) Document *document;
  
  // This uses the outlineView to get the selected row indices
  @property(weak) NSOutlineView *outlineView;
  
  @end
  