static bool get_keys(void *keylist_in, const void *k, const void *v) {
	RList *keylist = (RList *) keylist_in;
	return r_list_append (keylist, (char *) k);
}
static bool get_keys(void *keylist_in, const void *k, const void *v) {
	RList *keylist = (RList *) keylist_in;
	return r_list_append (keylist, (char *) k);
}