pub unsafe extern "C" fn rocksdb_create_iterator(
db: *mut rocksdb_t,
options: *const rocksdb_readoptions_t,
) -> *mut rocksdb_iterator_t
pub unsafe extern "C" fn rocksdb_create_iterator(
db: *mut rocksdb_t,
options: *const rocksdb_readoptions_t,
) -> *mut rocksdb_iterator_t