#define G_IS_VOLUME_MONITOR(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_VOLUME_MONITOR))
#define G_IS_VOLUME_MONITOR_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_VOLUME_MONITOR))
+#define G_VOLUME_MONITOR_EXTENSION_POINT_NAME "gio-volume-monitor"
+
/**
* GVolumeMonitor:
* @parent_instance: The parent instance.