+
+gsize g_variant_callback_write_to_vectors (GVariantVectors *vectors,
+ gpointer data,
+ GVariantTypeInfo **type_info);
+void g_variant_serialiser_write_to_vectors (GVariantVectors *items,
+ GVariantTypeInfo *type_info,
+ gsize size,
+ const gpointer *children,
+ gsize n_children);
+