child: Spoiler(openCurve: Curves.elasticOut,
               closeCurve: Curves.elasticIn,
               header: Text("Tools", style: TextStyle(color: Colors.white)),
               child: GameControl())

child: Spoilers(
         onUpdateCallback: (s) {
           print(s.childHeight);
           print(s.isOpened);
         },
         header: Text("Spoilers example header"),
         children: <Spoiler>[
           Spoiler(
             header: Text('First spoiler'),
               child: Text('Firsdt example context'),
           ),
           Spoiler(
             header: Text('Second spoiler'),
               child: Text('Second example context'),
           ),
         ],
       )