Re: lib\pure\asyncmacro.nim(43, 27) Error: attempting to call undeclared routine: 'callback='

[monster]

@dom96 I tried your idea, and it didn't work. Then I changed the forward 
declaration to be a "normal" proc, and implemented it lower down to just 
delegate to the async proc (asyncCheck sendMsgExternally(...)), and it didn't 
work either. I'll try to build an example now. If it's an async macro bug, we 
need an example anyway, to open an issue about it.