anchor.diff:    });
   
     test("can listen for Command-Shift shortcuts (OSX)", (){
  -    _s = ShortCut.stream.listen(expectAsync1((e) {
  +    _s = ShortCut.stream.listen(expectAsync((e) {
         expect(e.isCommandShift('A'), true);
       }));
   
  
positive.code:   });
  
    test("can listen for Ctrl-Shift shortcuts", (){
      _s = ShortCut.stream.listen(expectAsync1((e) {
        expect(e.isCtrlShift('A'), true);
      }));
  
  
negative.code:       Keys.shortcuts({
          'Esc':          (){ /* ... */ },
          'Ctrl+N':       (){ /* ... */ },
          'Ctrl+O, ⌘+O':  expectAsync((){}),
          'Ctrl+Shift+H': (){ /* ... */ }
        });
  
  