constraint < visit_lexing_position : env. 'env -> Morbig.CST.lexing_position -> Morbig.CST.lexing_position -> 'd; visit_located : env a_0 a_1. ('env -> 'a_0 -> 'a_1 -> 'd) -> 'env -> 'a_0 Morbig.CST.located -> 'a_1 Morbig.CST.located -> 'd; visit_position : env. 'env -> Morbig.CST.position -> Morbig.CST.position -> 'd; .. > = < visit_lexing_position : env. 'env -> Morbig.CST.lexing_position -> Morbig.CST.lexing_position -> 'd; visit_located : env a_0 a_1. ('env -> 'a_0 -> 'a_1 -> 'd) -> 'env -> 'a_0 Morbig.CST.located -> 'a_1 Morbig.CST.located -> 'd; visit_position : env. 'env -> Morbig.CST.position -> Morbig.CST.position -> 'd; .. >
method private virtual plus : 'd -> 'd -> 'dmethod private visit_array : env a b. ('env -> 'a -> 'b -> 'd) -> 'env -> 'a array -> 'b array -> 'dmethod private visit_bool : env. 'env -> bool -> bool -> 'dmethod private visit_bytes : env. 'env -> bytes -> bytes -> 'dmethod private visit_char : env. 'env -> char -> char -> 'dmethod private visit_float : env. 'env -> float -> float -> 'dmethod private visit_int : env. 'env -> int -> int -> 'dmethod private visit_int32 : env. 'env -> int32 -> int32 -> 'dmethod private visit_int64 : env. 'env -> int64 -> int64 -> 'dmethod private visit_lazy_t : env a b. ('env -> 'a -> 'b -> 'd) -> 'env -> 'a Stdlib.Lazy.t -> 'b Stdlib.Lazy.t -> 'dmethod visit_lexing_position : env. 'env -> Morbig.CST.lexing_position -> Morbig.CST.lexing_position -> 'dmethod private visit_list : env a b. ('env -> 'a -> 'b -> 'd) -> 'env -> 'a list -> 'b list -> 'dmethod visit_located : env a_0 a_1. ('env -> 'a_0 -> 'a_1 -> 'd) -> 'env -> 'a_0 Morbig.CST.located -> 'a_1 Morbig.CST.located -> 'dmethod private visit_nativeint : env. 'env -> nativeint -> nativeint -> 'dmethod private visit_option : env a b. ('env -> 'a -> 'b -> 'd) -> 'env -> 'a option -> 'b option -> 'dmethod visit_position : env. 'env -> Morbig.CST.position -> Morbig.CST.position -> 'dmethod private visit_ref : env a b. ('env -> 'a -> 'b -> 'd) -> 'env -> 'a Stdlib.ref -> 'b Stdlib.ref -> 'dmethod private visit_result : env a b e f. ('env -> 'a -> 'b -> 'd) -> ('env -> 'e -> 'f -> 'd) -> 'env -> ('a, 'e) Result.result -> ('b, 'f) Result.result -> 'dmethod private visit_string : env. 'env -> string -> string -> 'dmethod private visit_unit : env. 'env -> unit -> unit -> 'dmethod private virtual zero : 'd