Why there's no AsyncRelayCommand attribute

[msnoshain]

I prefer to use attributes to simplify my code:

[RelayCommand]
void TryLoginAndNavigate()
{

}

But I found that there's no AsyncRelayCommand attribute.
Is RelayCommand attribute able to handle async functions?

[Arlodotexe]

The [RelayCommand] attribute will generate an AsyncRelayCommand if the method it's attached to is asynchronous and returns a Task.

[msnoshain]

Thanks! I wrote a function that returns void by misktake. It's no wonder the source generater kept generating RelayCommand for me.