pub unsafe extern "C" fn rocksdb_load_latest_options(
    db_path: *const c_char,
    env: *mut rocksdb_env_t,
    ignore_unknown_options: bool,
    cache: *mut rocksdb_cache_t,
    db_options: *mut *mut rocksdb_options_t,
    num_column_families: *mut usize,
    column_family_names: *mut *mut *mut c_char,
    column_family_options: *mut *mut *mut rocksdb_options_t,
    errptr: *mut *mut c_char
)