Module DGraphTreeLayout

module DGraphTreeLayout: sig .. end

type cluster = string 

module Make: 
functor (Tree : Graph.Graphviz.GraphWithDotAttrs) -> 
functor (TreeManipulation : sig

val is_ghost_node : Tree.V.t -> bool

end) -> sig .. end

module MakeFromDotModel: 
functor (Tree : Sig.G  with type V.label = DGraphModel.DotG.V.t
		and type E.label = unit) -> 
functor (TreeManipulation : sig

val is_ghost_node : Tree.V.t -> bool

end) -> sig .. end