(** To be increased each time the command type below changes, used for "safe"
* marshalling *)
-let magic = 13
+let magic = 15
type ('term,'obj) command =
| Index of loc * 'term option (* key *) * UriManager.uri (* value *)
| Coercion of loc * 'term * bool (* add_obj *) *
int (* arity *) * int (* saturations *)
+ | PreferCoercion of loc * 'term
+ | UnificationHint of loc * 'term
| Default of loc * string * UriManager.uri list
| Drop of loc
| Include of loc * string