Hi all,

I wish to declare a type like

type a = A of (b -> unit) | ...

where b is a class like

class b = 
object (this)
	method f : a -> unit = 
		function 
		  A f -> f this
                | _ -> unit
end

or, alternatively:

class b =
object 
   inherit [a] otherclass
   ...
end

How can I do such a thing, considering that I can't write an "and"
keyword between a type declaration and a class (or class type)
declaration?

Thanks for help

Vincenzo

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