type S3Location struct {
	BucketName   string          `xml:"BucketName,omitempty"`
	Encryption   Encryption      `xml:"Encryption,omitempty"`
	Prefix       string          `xml:"Prefix,omitempty"`
	StorageClass string          `xml:"StorageClass,omitempty"`
	Tagging      *tags.Tags      `xml:"Tagging,omitempty"`
	UserMetadata []MetadataEntry `xml:"UserMetadata"`
}

type grantee struct {
	XMLNS       string `xml:"xmlns:xsi,attr"`
	XMLXSI      string `xml:"xsi:type,attr"`
	Type        string `xml:"Type"`
	ID          string `xml:"ID,omitempty"`
	DisplayName string `xml:"DisplayName,omitempty"`
	URI         string `xml:"URI,omitempty"`
}

type grant struct {
	Grantee    grantee `xml:"Grantee"`
	Permission string  `xml:"Permission"`
}

type accessControlPolicy struct {

	return e.EncodeElement(string(*alg), start)
}

// EncryptionAction - for ApplyServerSideEncryptionByDefault XML tag
type EncryptionAction struct {
	Algorithm   Algorithm `xml:"SSEAlgorithm,omitempty"`
	MasterKeyID string    `xml:"KMSMasterKeyID,omitempty"`
}

// Rule - for ServerSideEncryptionConfiguration XML tag
type Rule struct {
	DefaultEncryptionAction EncryptionAction `xml:"ApplyServerSideEncryptionByDefault"`
}

}

// Rule - a rule for replication configuration.
type Rule struct {
	XMLName                 xml.Name                `xml:"Rule" json:"Rule"`
	ID                      string                  `xml:"ID,omitempty" json:"ID,omitempty"`
	Status                  Status                  `xml:"Status" json:"Status"`
	Priority                int                     `xml:"Priority" json:"Priority"`

	// Last bucket/object replicated.
	Bucket string `json:"bucket,omitempty"`
	Object string `json:"object,omitempty"`
}

// VersionPurgeStatusType represents status of a versioned delete or permanent delete w.r.t bucket replication
type VersionPurgeStatusType = replication.VersionPurgeStatusType

type replicationResyncer struct {
	// map of bucket to their resync status

// Expiration - expiration actions for a rule in lifecycle configuration.
type Expiration struct {
	XMLName      xml.Name           `xml:"Expiration"`
	Days         ExpirationDays     `xml:"Days,omitempty"`
	Date         ExpirationDate     `xml:"Date,omitempty"`
	DeleteMarker ExpireDeleteMarker `xml:"ExpiredObjectDeleteMarker"`
	// Indicates whether MinIO will remove all versions. If set to true, all versions will be deleted;

	Type             VersionType           `json:"Type" msg:"Type"`
	ObjectV1         *xlMetaV1Object       `json:"V1Obj,omitempty" msg:"V1Obj,omitempty"`
	ObjectV2         *xlMetaV2Object       `json:"V2Obj,omitempty" msg:"V2Obj,omitempty"`
	DeleteMarker     *xlMetaV2DeleteMarker `json:"DelObj,omitempty" msg:"DelObj,omitempty"`
	WrittenByVersion uint64                `msg:"v"` // Tracks written by MinIO version
}

type Filter struct {
	XMLName xml.Name `xml:"Filter"`
	set     bool

	Prefix Prefix

	ObjectSizeGreaterThan int64 `xml:"ObjectSizeGreaterThan,omitempty"`
	ObjectSizeLessThan    int64 `xml:"ObjectSizeLessThan,omitempty"`

	And    And
	andSet bool

	Tag    Tag
	tagSet bool

	// Caching tags, only once
	cachedTags map[string]string
}

			ID         uint
			Value      string
			Level2ID   *uint
			Level2_1ID *uint
			Level0s    []Level0 `json:",omitempty"`
		}
		Level2 struct {
			ID       uint
			Level1s  []Level1
			Level3ID uint
		}
		Level2_1 struct {
			ID       uint
			Level1s  []Level1 `json:",omitempty"`
			Level3ID uint
		}
		Level3 struct {
			ID       uint
			Name     string
			Level2   Level2

// DelMarkerExpiration used to xml encode/decode ILM action by the same name
type DelMarkerExpiration struct {
	XMLName xml.Name `xml:"DelMarkerExpiration"`
	Days    int      `xml:"Days,omitempty"`
}

// Empty returns if a DelMarkerExpiration XML element is empty.
// Used to detect if lifecycle.Rule contained a DelMarkerExpiration element.
func (de DelMarkerExpiration) Empty() bool {
	return de.Days == 0
}