[Flutter] Understanding async method code

Future<String> createOrderMessage() async {
  var order = await fetchUserOrder();
  return 'Your order is: $order';
}

Future<String> fetchUserOrder() {
  return Future.delayed(
    Duration(seconds: 2),
    () => 'Large Latte',
  );
}

void main() {
  print(createOrderMessage());
}

Instance of '_Future<String>' // Output

Let's see why it prints this.
main method calls createOrderMessage(), and when the called method hits await,
it first returns a Future<String> with no String.
Then main method should wait until the String is delivered to the Future,
but the createOrderMessage() method is waiting for 2 seconds at await fetchUserOrder().

main method didn't use await when calling the createOrderMessage() method,
so it went straight to print(), and
an empty Future<String> object was returned.

The fix is to make main method an async method too, and use await
when calling createOrderMessage().

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