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module Splay_tree

: sig
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module type Key = sig
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type t
include Core.Std.Comparable with type t := t
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val t_of_sexp : Sexplib.Sexp.t -> t
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val sexp_of_t : t -> Sexplib.Sexp.t
end
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module type S = sig
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type 'a t
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type key
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val empty : 'a t
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val is_empty : 'a t -> bool
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val length : 'a t -> int
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val keys : 'a t -> key list
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val data : 'a t -> 'a list
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val to_alist : 'a t -> (key * 'a) list
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val mem : 'a t -> key -> 'a t * bool
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val find : 'a t -> key -> 'a t * 'a option
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val set : 'a t -> key:key -> data:'a -> 'a t
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val delete : 'a t -> key -> 'a t
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val delete_min : 'a t -> (key * 'a * 'a t) option
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val delete_max : 'a t -> (key * 'a * 'a t) option
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val delete_after : 'a t -> key -> (key * 'a * 'a t) option
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val delete_before : 'a t -> key -> (key * 'a * 'a t) option
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val map : 'a t -> f:('a -> 'b) -> 'b t
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val map_range : 'a t -> min_key:key -> max_key:key -> f:((key * 'a) list -> (key * 'a) list) -> 'a t
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val split : 'a t -> key -> 'a t * 'a option * 'a t
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val t_of_sexp : (Sexplib.Sexp.t -> 'a) -> Sexplib.Sexp.t -> 'a t
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val sexp_of_t : ('a -> Sexplib.Sexp.t) -> 'a t -> Sexplib.Sexp.t
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val key_of_sexp : Sexplib.Sexp.t -> key
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val sexp_of_key : key -> Sexplib.Sexp.t
end
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module Make : functor (Key : Key) -> S with type key = Key.t
end