pub unsafe extern "C" fn rocksdb_backupable_db_options_set_backup_rate_limit(
options: *mut rocksdb_backupable_db_options_t,
limit: u64
)pub unsafe extern "C" fn rocksdb_backupable_db_options_set_backup_rate_limit(
options: *mut rocksdb_backupable_db_options_t,
limit: u64
)