var configLock sync.RWMutex

// Config storage class configuration
type Config struct {
	CSPPolicy             string `json:"csp_policy"`
	HSTSSeconds           int    `json:"hsts_seconds"`
	HSTSIncludeSubdomains bool   `json:"hsts_include_subdomains"`
	HSTSPreload           bool   `json:"hsts_preload"`
	ReferrerPolicy        string `json:"referrer_policy"`
}

// Update Updates browser with new config

In the examples we use a `MSS` type, which is a `map[string]string` that is `msgp` serializable.

```go
    handler := func(request *grid.MSS) (*grid.MSS, *grid.RemoteErr) {
        fmt.Println("Got request with field", request["myfield"])
        // Do something with payload
        return NewMSSWith(map[string]string{"result": "ok"}), nil
    }
	
    // Create a typed handler.

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 nil, auth.Credentials{}
}

// AdminError - is a generic error for all admin APIs.
type AdminError struct {
	Code       string
	Message    string
	StatusCode int
}

func (ae AdminError) Error() string {
	return ae.Message
}

func toAdminAPIErr(ctx context.Context, err error) APIError {
	if err == nil {
		return noError
	}

	var apiErr APIError

// an object. It indicates that the object itself or its metadata was
// modified accidentally or maliciously.
type Error struct {
	msg   string
	cause error
}

// Errorf - formats according to a format specifier and returns
// the string as a value that satisfies error of type crypto.Error
func Errorf(format string, a ...interface{}) error {
	e := fmt.Errorf(format, a...)
	ee := Error{}
	ee.msg = e.Error()
	ee.cause = errors.Unwrap(e)

func TestARNString(t *testing.T) {
	testCases := []struct {
		arn            ARN
		expectedResult string
	}{
		{ARN{}, ""},
		{ARN{TargetID{"1", "webhook"}, ""}, "arn:minio:sqs::1:webhook"},
		{ARN{TargetID{"1", "webhook"}, "us-east-1"}, "arn:minio:sqs:us-east-1:1:webhook"},
	}

	for i, testCase := range testCases {
		result := testCase.arn.String()

		if result != testCase.expectedResult {

)

// partialOperation is a successful upload/delete of an object
// but not written in all disks (having quorum)
type partialOperation struct {
	bucket              string
	object              string
	versionID           string
	versions            []byte
	setIndex, poolIndex int
	queued              time.Time
	scanMode            madmin.HealScanMode
}

// mrfState sncapsulates all the information

// This implementation doesn't support all the open
// flags and shouldn't be considered as replacement
// for os.OpenFile().
func LockedOpenFile(path string, flag int, perm os.FileMode) (*LockedFile, error) {
	return lockedOpenFile(path, flag, perm, 0)
}

// Open - Call os.OpenFile
func Open(path string, flag int, perm os.FileMode) (*os.File, error) {
	return os.OpenFile(path, flag, perm)

type ContextTraceType string

// ContextTraceKey is the key of TraceCtxt saved in a Golang context
const ContextTraceKey = ContextTraceType("ctx-trace-info")

// TraceCtxt holds related tracing data of a http request.
type TraceCtxt struct {
	RequestRecorder  *xhttp.RequestRecorder
	ResponseRecorder *xhttp.ResponseRecorder

	FuncName string
	AmzReqID string

	// e.g. who created the policy at which point in time.
	DescribePolicy(ctx context.Context, policy string) (*kes.PolicyInfo, error)

	// GetPolicy gets a policy from KMS.
	GetPolicy(ctx context.Context, policy string) (*kes.Policy, error)

	// ListPolicies lists all policies.
	ListPolicies(ctx context.Context) (*kes.ListIter[string], error)