Source file `monad_intf.ml`

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module type S1_base = sig
  type 'a t

  val return : 'a -> 'a t

  val ( >>= ) : 'a t -> ('a -> 'b t) -> 'b t
end

module type S1 = sig
  include S1_base

  module O : sig
    val ( let+ ) : 'a t -> ('a -> 'b) -> 'b t

    val ( and+ ) : 'a t -> 'b t -> ('a * 'b) t

    val ( let* ) : 'a t -> ('a -> 'b t) -> 'b t
  end
end