+extern int xkb_base;
+
+/**
+ * Adds the given sequence to the list of events which are ignored.
+ * If this ignore should only affect a specific response_type, pass
+ * response_type, otherwise, pass -1.
+ *
+ * Every ignored sequence number gets garbage collected after 5 seconds.
+ *
+ */
+void add_ignore_event(const int sequence, const int response_type);