struct shash_node *shash_add_nocopy(struct shash *, char *, const void *);
bool shash_add_once(struct shash *, const char *, const void *);
void shash_add_assert(struct shash *, const char *, const void *);
+void *shash_replace(struct shash *, const char *, const void *data);
void shash_delete(struct shash *, struct shash_node *);
struct shash_node *shash_find(const struct shash *, const char *);
void *shash_find_data(const struct shash *, const char *);