Returning values

You can return a value from a Scope's run method.
import 'package:scope/scope.dart';
void main() {
/// buld the scope
final greeter = (Scope()
..value<String>(greetingToken, 'Hello')
..value<int>(emphasisToken, 1))
/// run code in the scope getting the return value
/// use the returned value
greeter.greet('world'); // `greeter` can now be used outside of the scope
// but will have no access to scope keys.