@sa bt_object_put_ref(): Decrements the reference count of a Babeltrace object.
*/
-void *bt_object_get_ref(void *obj);
+void bt_object_get_ref(const void *obj);
/**
@brief Decrements the reference count of the Babeltrace object
variable to another.
@sa bt_object_get_ref(): Increments the reference count of a Babeltrace object.
*/
-void bt_object_put_ref(void *obj);
+void bt_object_put_ref(const void *obj);
/**
@}