public static extern void iter_get_error(leveldb_iterator_t *p0, out IntPtr errptr);
public static extern void *iter_key(leveldb_iterator_t *p0, out size_t klen);
public static extern void *iter_value(leveldb_iterator_t *p0, out size_t vlen);
public static extern void iter_prev(leveldb_iterator_t *p0);
public static extern void iter_seek(leveldb_iterator_t *p0, void *k, size_t klen);
public static extern void iter_seek_to_last(leveldb_iterator_t *p0);
public static extern bool iter_valid(leveldb_iterator_t *p0);
public static extern void iter_destroy(leveldb_iterator_t *p0);