pub unsafe extern "C" fn rocksdb_batched_multi_get_cf(
    db: *mut rocksdb_t,
    options: *const rocksdb_readoptions_t,
    column_family: *mut rocksdb_column_family_handle_t,
    num_keys: usize,
    keys_list: *const *const c_char,
    keys_list_sizes: *const usize,
    values: *mut *mut rocksdb_pinnableslice_t,
    errs: *mut *mut c_char,
    sorted_input: bool
)