+ (* Actions to take before and after evaluating a file *)
+ val registerPre : (unit -> unit) -> unit
+ val pre : unit -> unit
+ val registerPost : (unit -> unit) -> unit
+ val post : unit -> unit
+
+ (* ...and before type-checking *)
+ val registerPreTycheck : (unit -> unit) -> unit
+ val preTycheck : unit -> unit
+
+ val badArgs : string * Ast.exp list -> 'a
+ val badArg : string * string * Ast.exp -> 'a
+
+ type 'a arg = Ast.exp -> 'a option
+
+ val int : int arg
+ val string : string arg
+ val bool : bool arg
+ val list : 'a arg -> 'a list arg
+
+ val none : string -> (unit -> unit) -> action
+ val one : string -> string * 'a arg -> ('a -> unit) -> action
+ val two : string -> string * 'a arg * string * 'b arg -> ('a * 'b -> unit) -> action
+ val three : string
+ -> string * 'a arg * string * 'b arg * string * 'c arg
+ -> ('a * 'b * 'c -> unit) -> action
+
+ val oneV : string -> string * 'a arg -> (env_vars * 'a -> unit) -> action
+ val twoV : string -> string * 'a arg * string * 'b arg -> (env_vars * 'a * 'b -> unit) -> action
+
+ val env : 'a arg -> env_vars * string -> 'a
+
+ val type_one : string -> 'a arg -> ('a -> bool) -> unit
+
+ val action_none : string -> (unit -> unit) -> unit
+ val action_one : string -> string * 'a arg -> ('a -> unit) -> unit
+ val action_two : string -> string * 'a arg * string * 'b arg -> ('a * 'b -> unit) -> unit
+ val action_three : string
+ -> string * 'a arg * string * 'b arg * string * 'c arg
+ -> ('a * 'b * 'c -> unit) -> unit
+
+ val actionV_none : string -> (env_vars -> unit) -> unit
+ val actionV_one : string -> string * 'a arg -> (env_vars * 'a -> unit) -> unit
+ val actionV_two : string -> string * 'a arg * string * 'b arg -> (env_vars * 'a * 'b -> unit) -> unit
+
+ val container_none : string -> (unit -> unit) * (unit -> unit) -> unit
+ val container_one : string -> string * 'a arg -> ('a -> unit) * (unit -> unit) -> unit
+
+ val containerV_one : string -> string * 'a arg -> (env_vars * 'a -> unit) * (unit -> unit) -> unit
+
+ val registerFunction : string * (Ast.exp list -> Ast.exp option) -> unit
+ val function : string -> (Ast.exp list -> Ast.exp option) option