if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}
	// explicitly set ExpiryUpdatedAt nil as its meant for internal consumption only
	config.ExpiryUpdatedAt = nil

	configData, err := xml.Marshal(config)
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	if withUpdatedAt {

					}
				}
				expLclCfg.ExpiryUpdatedAt = meta.lifecycleConfig.ExpiryUpdatedAt
				ilmConfigData, err := xml.Marshal(expLclCfg)
				if err != nil {
					return info, errSRBackendIssue(err)
				}

				expLclCfgStr := base64.StdEncoding.EncodeToString(ilmConfigData)
				bms.ExpiryLCConfig = &expLclCfgStr
				// if all non expiry rules only, ExpiryUpdatedAt would be nil