public static extern bool get(leveldb_t *db, leveldb_readoptions_t *options, void *key, size_t keylen, leveldb_get_callback callback, out IntPtr errptr);
public static extern leveldb_iterator_t *create_iterator(leveldb_t *db, leveldb_readoptions_t *options);
public static extern void *get(leveldb_t *db, leveldb_readoptions_t *options, void *key, size_t keylen, out size_t vallen, out IntPtr errptr);
public static extern void readoptions_set_snapshot(leveldb_readoptions_t *p0, leveldb_snapshot_t *p1);
public static extern void readoptions_set_fill_cache(leveldb_readoptions_t *p0, bool p1);
public static extern void readoptions_set_verify_checksums(leveldb_readoptions_t *p0, bool p1);
public static extern void readoptions_destroy(leveldb_readoptions_t *p0);