- * @copy_func: (allow-none): the copy function, or NULL
- * @dispose_func: (allow-none): the dispose function, or NULL
- * @free_func: (allow-none): the free function or NULL
+ * @copy_func: (allow-none): the copy function, or %NULL
+ * @dispose_func: (allow-none): the dispose function, or %NULL
+ * @free_func: (allow-none): the free function or %NULL