call method
Implementation
@override
Object? call(Interpreter interpreter, List<Object?> arguments,
Map<Symbol, Object?> namedArguments) {
var child = namedArguments[const Symbol('child')];
if (child == null) {
throw "child required in Center";
}
double? heightFactor =
parseDouble(namedArguments[const Symbol('heightFactor')]);
double? widthFactor =
parseDouble(namedArguments[const Symbol('widthFactor')]);
return Center(
child: child as Widget,
heightFactor: heightFactor,
widthFactor: widthFactor,
);
}