pub unsafe extern "C" fn rocksdb_backup_engine_restore_db_from_backup(
be: *mut rocksdb_backup_engine_t,
db_dir: *const c_char,
wal_dir: *const c_char,
restore_options: *const rocksdb_restore_options_t,
backup_id: u32,
errptr: *mut *mut c_char
)