module type MAP =sig..end
type vertex 
type 'a t 
val as_graph : 'a t -> (vertex, 'a) CCGraph.graph val empty : 'a t 
val add_edge : vertex ->
 'a -> vertex -> 'a t -> 'a t 
val remove_edge : vertex ->
 vertex -> 'a t -> 'a t 
val add : vertex -> 'a t -> 'a t val remove : vertex -> 'a t -> 'a t CCGraph.MAP.remove_edge val union : 'a t -> 'a t -> 'a t 
val vertices : 'a t -> vertex CCGraph.sequence 
val vertices_l : 'a t -> vertex list
val of_list : (vertex * 'a * vertex) list -> 'a t 
val add_list : (vertex * 'a * vertex) list ->
 'a t -> 'a t 
val to_list : 'a t -> (vertex * 'a * vertex) list
val of_seq : (vertex * 'a * vertex) CCGraph.sequence ->
 'a t 
val add_seq : (vertex * 'a * vertex) CCGraph.sequence ->
 'a t -> 'a t 
val to_seq : 'a t ->
 (vertex * 'a * vertex) CCGraph.sequence