Hey,

Has any thought been given to supporting phpstan/psalm generics e.g.

class Foo
{
    /**
     * @return Promise<MyDomainThing>
     */
    public function wait(): Promise { // ... }
}

Otherewise, what's the best way to document a Promise that's compatible with SA tools?

Psalm has some stubs for Amp: https://github.com/vimeo/psalm/blob/master/src/Psalm/Internal/Stubs/Amp.php