module Custom: sig .. end
sig
end
type ('a, 'b) column = ?title:string -> 'b list -> ('a -> 'b list) -> GTree.view_column
('a, 'b)
?title:string -> 'b list -> ('a -> 'b list) -> GTree.view_column
class type virtual ['a] custom = object .. end
['a]
object
class type ['a] columns = object .. end
module List: sig .. end
module Tree: sig .. end