loadPolicyDoc(ctx context.Context, policy string, m map[string]PolicyDoc) error
	loadPolicyDocWithRetry(ctx context.Context, policy string, m map[string]PolicyDoc, retries int) error
	loadPolicyDocs(ctx context.Context, m map[string]PolicyDoc) error
	loadUser(ctx context.Context, user string, userType IAMUserType, m map[string]UserIdentity) error
	loadUsers(ctx context.Context, userType IAMUserType, m map[string]UserIdentity) error

	Erasure struct {
		Version string `json:"version"`
	} `json:"xl"`
}

// Represents the V1 backend disk structure version
// under `.minio.sys` and actual data namespace.
// formatErasureV1 - structure holds format config version '1'.
type formatErasureV1 struct {
	formatMetaV1
	Erasure struct {
		Version string `json:"version"` // Version of 'xl' format.

type MetadataEntry struct {
	Name  string `xml:"Name"`
	Value string `xml:"Value"`
}

// S3Location specifies s3 location that receives result of a restore object request
type S3Location struct {
	BucketName   string          `xml:"BucketName,omitempty"`
	Encryption   Encryption      `xml:"Encryption,omitempty"`
	Prefix       string          `xml:"Prefix,omitempty"`
	StorageClass string          `xml:"StorageClass,omitempty"`

	testCases := []struct {
		bucketName      string
		objName         string
		uploadID        string
		PartID          int
		inputReaderData string
		inputMd5        string
		inputSHA256     string
		inputDataSize   int64
		// flag indicating whether the test should pass.
		shouldPass bool
		// expected error output.
		expectedMd5   string
		expectedError error
	}{
		// Test case  1-4.

	"sync"
	"time"

	xioutil "github.com/minio/minio/internal/ioutil"
)

func renameAllBucketMetacache(epPath string) error {
	// Rename all previous `.minio.sys/buckets/<bucketname>/.metacache` to
	// to `.minio.sys/tmp/` for deletion.
	return readDirFn(pathJoin(epPath, minioMetaBucket, bucketMetaPrefix), func(name string, typ os.FileMode) error {
		if typ == os.ModeDir {

	ChecksumCRC32C string `xml:"ChecksumCRC32C,omitempty"`
	ChecksumSHA1   string `xml:"ChecksumSHA1,omitempty"`
	ChecksumSHA256 string `xml:"ChecksumSHA256,omitempty"`
}

// DeleteError structure.
type DeleteError struct {
	Code      string
	Message   string
	Key       string
	VersionID string `xml:"VersionId"`
}

// DeleteObjectsResponse container for multiple object deletes.

	}
	return encodedResource
}

// Return string to sign under two different conditions.
// - if expires string is set then string to sign includes date instead of the Date header.
// - if expires string is empty then string to sign includes date header instead.
func getStringToSignV2(method string, encodedResource, encodedQuery string, headers http.Header, expires string) string {
	canonicalHeaders := canonicalizedAmzHeadersV2(headers)

type RenameFileHandlerParams struct {
	DiskID      string `msg:"id"`
	SrcVolume   string `msg:"sv"`
	SrcFilePath string `msg:"sp"`
	DstVolume   string `msg:"dv"`
	DstFilePath string `msg:"dp"`
}

// ReadAllHandlerParams are parameters for ReadAllHandler.
type ReadAllHandlerParams struct {
	DiskID   string `msg:"id"`
	Volume   string `msg:"v"`
	FilePath string `msg:"fp"`
}

	testCases := []struct {
		meta   map[string]string
		ondisk bool
	}{
		{
			// restore in progress
			meta: map[string]string{
				xhttp.AmzRestore: ongoingRestoreObj().String(),
			},
			ondisk: false,
		},
		{
			// restore completed
			meta: map[string]string{
				xhttp.AmzRestore: completedRestoreObj(time.Now().Add(time.Hour)).String(),
			},
			ondisk: true,
		},
		{

)

// Returns a base64 encoded random 32 byte string.
func randomState() string {
	b := make([]byte, 32)
	rand.Read(b)
	return base64.RawURLEncoding.EncodeToString(b)
}

var (
	stsEndpoint    string
	configEndpoint string
	clientID       string
	clientSec      string
	clientScopes   string
	port           int
)

// DiscoveryDoc - parses the output from openid-configuration