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23 lines
610 B
23 lines
610 B
(*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*)
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open! NS0
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include module type of Core.Option
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val pp : ('a_pp -> 'a -> unit, unit) fmt -> 'a_pp -> 'a option pp
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(** Pretty-print an option. *)
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val or_else : f:(unit -> 'a option) -> 'a option -> 'a option
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(** [or_else ~f] is [f ()] on [None] and otherwise identity *)
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val cons : 'a t -> 'a list -> 'a list
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module Import : sig
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include Monad_syntax with type 'a t := 'a option
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include module type of Monad_infix
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end
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