= "ocaml_augeas_create"
external close : t -> unit
= "ocaml_augeas_close"
+external defnode : t -> string -> string -> string option -> int * bool
+ = "ocaml_augeas_defnode"
external defvar : t -> string -> string option -> int option
= "ocaml_augeas_defvar"
external get : t -> path -> value option