Module Ppx_deriving_fold

val deriver : string
val raise_errorf : ?⁠sub:Location.error list -> ?⁠loc:Location.t -> ('a, unit, string, 'b) Stdlib.format4 -> 'a
val parse_options : (string * Parsetree.expression) list -> unit
val attr_nobuiltin : Parsetree.attributes -> bool
val argn : int -> string
val argl : string -> string
val pattn : 'a list -> Parsetree.pattern list
val pattl : Parsetree.label_declaration list -> (string * Parsetree.pattern) list
val pconstrrec : string -> (string * Parsetree.pattern) list -> Parsetree.pattern
val reduce_acc : Parsetree.expression -> Parsetree.expression -> Parsetree.expression
val expr_of_typ : Parsetree.core_type -> Parsetree.expression
val expr_of_label_decl : Parsetree.label_declaration -> Parsetree.expression
val str_of_type : options:(string * Parsetree.expression) list -> path:'a -> Parsetree.type_declaration -> Parsetree.value_binding list
val sig_of_type : options:(string * Parsetree.expression) list -> path:'a -> Parsetree.type_declaration -> Parsetree.signature_item list