wait function
Provides a wait() function that returns a Future that completes after the given number of milliseconds.
milliseconds int -> Future
Example
var future = wait(1000);
print("Future completed after 1 second.");
Implementation
Future wait(List args) {
_arityCheck(1, args.length);
_numberTypeCheck(args[0]);
final ms = args[0] as num;
return Future.delayed(Duration(milliseconds: ms.toInt()), () => ms);
}