Nested constructor Null safety

Nested(
  1. {Key? key,
  2. required List<SingleChildWidget> children,
  3. Widget? child}
)

Allows configuring key, children and child

Implementation

Nested({
  Key? key,
  required List<SingleChildWidget> children,
  Widget? child,
})  : assert(children.isNotEmpty),
      _children = children,
      _child = child,
      super(key: key);