Question: Does Dart not allow you to create static extension methods?

[gosoccerboy5]

When I type

extension on Object {
  static String foo() => "helo";
}
void main() {
  print(Object.foo());
}

in Dartpad or my local machine (Dart 2.13), I get a static analysis error:

Error: Method not found: 'Object.foo'.
  print(Object.foo());
               ^^^

What's going on? Am I not allowed to make static extension methods on a class?
If so, where does it mention this? I must have skipped over it somewhere.

[Levi-Lesches]

Nope, but it's being discussed: #42, #723.

[gosoccerboy5]

Oh. Ok, thanks.