}
	}
}

// PurgeExpiredSTS - purges expired STS credentials.
func (store *IAMStoreSys) PurgeExpiredSTS(ctx context.Context) error {
	iamOS, ok := store.IAMStorageAPI.(*IAMObjectStore)
	if !ok {
		// No purging is done for non-object storage.
		return nil
	}
	return iamOS.PurgeExpiredSTS(ctx)
}

// LoadIAMCache reads all IAM items and populates a new iamCache object and
// replaces the in-memory cache object.