if entity == "" {
		return toAPIError(ctx, fmt.Errorf("error exporting %s with: %w", fname, err))
	}
	return toAPIError(ctx, fmt.Errorf("error exporting %s from %s with: %w", entity, fname, err))
}

// wraps import error for more context
func importError(ctx context.Context, err error, fname, entity string) APIError {
	if entity == "" {
		return toAPIError(ctx, fmt.Errorf("error importing %s with: %w", fname, err))
	}

// MarshalText - marshals storage class string.
func (sc *StorageClass) MarshalText() ([]byte, error) {
	if sc.Parity != 0 {
		return fmt.Appendf(nil, "%s:%d", schemePrefix, sc.Parity), nil
	}
	return []byte{}, nil
}

func (sc *StorageClass) String() string {
	if sc.Parity != 0 {
		return fmt.Sprintf("%s:%d", schemePrefix, sc.Parity)
	}
	return ""
}

		if err != nil {
			return psi, errSRPeerResp(fmt.Errorf("unable to create admin client for %s: %w", v.Name, err))
		}

		info, err := admClient.ServerInfo(ctx)
		if err != nil {
			return psi, errSRPeerResp(fmt.Errorf("unable to fetch server info for %s: %w", v.Name, err))
		}

		s3Client, err := getS3Client(v)
		if err != nil {
			return psi, errSRPeerResp(fmt.Errorf("unable to create s3 client for %s: %w", v.Name, err))

		{
			queryParams: map[string]string{
				"Expires":        fmt.Sprintf("%d", now.Unix()+60),
				"Signature":      "badsignature",
				"AWSAccessKeyId": accessKey,
			},
			expected: ErrSignatureDoesNotMatch,
		},
		// (5) Should error when the signature does not match.
		{
			queryParams: map[string]string{
				"Expires":        fmt.Sprintf("%d", now.Unix()+60),
				"Signature":      "zOM2YrY/yAQe15VWmT78OlBrK6g=",

func getESVersionSupportStatus(version string) (res ESSupportStatus, err error) {
	parts := strings.Split(version, ".")
	if len(parts) < 1 {
		err = fmt.Errorf("bad ES version string: %s", version)
		return res, err
	}

	majorVersion, err := strconv.Atoi(parts[0])
	if err != nil {
		err = fmt.Errorf("bad ES version string: %s", version)
		return res, err
	}

	switch {
	case majorVersion <= 6:
		res = ESSUnsupported
	default:

# Usage

```go
package main

import (
	"fmt"

	"github.com/smallnest/ringbuffer"
)

func main() {
	rb := ringbuffer.New(1024)

	// write
	rb.Write([]byte("abcd"))
	fmt.Println(rb.Length())
	fmt.Println(rb.Free())

	// read
	buf := make([]byte, 4)
	rb.Read(buf)
	fmt.Println(string(buf))
}
```

	case sqlFnCoalesce:
		if len(e.SFunc.ArgsList) == 0 {
			return qProp{err: fmt.Errorf("%s needs at least one argument", string(funcName))}
		}
		for _, arg := range e.SFunc.ArgsList {
			result.combine(arg.analyze(s))
		}
		return result

	case sqlFnNullIf:
		if len(e.SFunc.ArgsList) != 2 {
			return qProp{err: fmt.Errorf("%s needs exactly 2 arguments", string(funcName))}
		}

type SizeTooSmall struct {
	Want int64
	Got  int64
}

func (e SizeTooSmall) Error() string {
	return fmt.Sprintf("Size small: got %d, want %d", e.Got, e.Want)
}

// SizeTooLarge reader size too large
type SizeTooLarge struct {
	Want int64
	Got  int64
}

func (e SizeTooLarge) Error() string {
	return fmt.Sprintf("Size large: got %d, want %d", e.Got, e.Want)
}

// SizeMismatch error size mismatch

	}

	v, err := li.Get()
	if err != nil {
		log.Fatalf("Error retrieving STS credentials: %v", err)
	}

	if displayCreds {
		fmt.Println("Only displaying credentials:")
		fmt.Println("AccessKeyID:", v.AccessKeyID)
		fmt.Println("SecretAccessKey:", v.SecretAccessKey)
		fmt.Println("SessionToken:", v.SessionToken)
		return
	}

	// Use generated credentials to authenticate with MinIO server

				found = true
				break
			}
		}
		if !found {
			logger.Fatal(fmt.Errorf("unknown algorithm %q passed to --sftp=%s\nValid algorithms: %v", algo, arg, strings.Join(allowed, ", ")), "unable to start SFTP server")
		}
	}
	if len(filteredAlgos) == 0 {