func (opts Config) ExpirationWait() time.Duration {
	configMu.RLock()
	defer configMu.RUnlock()

	return opts.ExpirationWorkersWait
}

// ReplicationWait returns the duration for which a batch replication worker
// would wait before working on next object.
func (opts Config) ReplicationWait() time.Duration {
	configMu.RLock()
	defer configMu.RUnlock()

	return opts.ReplicationWorkersWait
}