Opacity constructor Null safety

const Opacity(
  1. {Key? key,
  2. required double opacity,
  3. bool alwaysIncludeSemantics,
  4. Widget? child}
)

Implementation

const factory Opacity(
    {final Key? key,
    required final double opacity,
    final bool alwaysIncludeSemantics,
    final Widget? child}) = _$Opacity;