return authTypeStreamingUnsignedTrailer
	} else if isRequestSignatureV4(r) {
		return authTypeSigned
	} else if isRequestPresignedSignatureV4(r) {
		return authTypePresigned
	} else if isRequestJWT(r) {
		return authTypeJWT
	} else if isRequestPostPolicySignatureV4(r) {
		return authTypePostPolicy
	} else if _, ok := r.Form[xhttp.Action]; ok {
		return authTypeSTS
	} else if _, ok := r.Header[xhttp.Authorization]; !ok {

// as a string. If the [Buffer] is a nil pointer, it returns "<nil>".
//
// To build strings more efficiently, see the [strings.Builder] type.
func (b *Buffer) String() string {
	if b == nil {
		// Special case, useful in debugging.
		return "<nil>"
	}
	return string(b.buf[b.off:])
}

// Peek returns the next n bytes without advancing the buffer.
// If Peek returns fewer than n bytes, it also returns [io.EOF].

		switch r {
		case ' ', '\t', '\n', '\v', '\f', '\r':
			return true
		case '\u0085', '\u00A0':
			return true
		}
		return false
	}
	// High-valued ones.
	if '\u2000' <= r && r <= '\u200a' {
		return true
	}
	switch r {
	case '\u1680', '\u2028', '\u2029', '\u202f', '\u205f', '\u3000':
		return true
	}
	return false
}

	return "Object name invalid: " + e.Bucket + "/" + e.Object
}

// Error returns string an error formatted as the given text.
func (e ObjectNameTooLong) Error() string {
	return "Object name too long: " + e.Bucket + "/" + e.Object
}

// Error returns string an error formatted as the given text.
func (e ObjectNamePrefixAsSlash) Error() string {

					switch err.(type) {
					case ObjectNotFound, BucketNotFound:
						return false, nil
					case InsufficientReadQuorum, StorageErr:
						return true, nil
					}
					return false, err
				}
				err = d.deserialize(r)
				r.Close()
				return err != nil, nil
			case InsufficientReadQuorum, StorageErr:
				return true, nil
			}
			return false, err
		}
		err = d.deserialize(r)
		r.Close()

	buf := *bufp

	return io.CopyBuffer(writerOnly{dst}, src, buf)
}

// SameFile returns if the files are same.
func SameFile(fi1, fi2 os.FileInfo) bool {
	if !os.SameFile(fi1, fi2) {
		return false
	}
	if !fi1.ModTime().Equal(fi2.ModTime()) {
		return false
	}
	if fi1.Mode() != fi2.Mode() {
		return false
	}
	return fi1.Size() == fi2.Size()
}

          return null
        }

        if (retryAfter(userResponse, Integer.MAX_VALUE) == 0) {
          // specifically received an instruction to retry without delay.
          return userResponse.request
        }

        return null
      }

      HTTP_MISDIRECTED_REQUEST -> {

	// Check if we are in DCOS environment, return
	// deployment guide for update procedures.
	if IsDCOS() {
		return mesosDeploymentDoc
	}

	// Check if we are in kubernetes environment, return
	// deployment guide for update procedures.
	if IsKubernetes() {
		return kubernetesDeploymentDoc
	}

	// Check if we are docker environment, return docker update command
	if IsDocker() {

		return j.ObjectV1.Signature()
	}
	return signatureErr
}

// getModTime will return the ModTime of the underlying version.
func (j xlMetaV2Version) getModTime() time.Time {
	switch j.Type {
	case ObjectType:
		return time.Unix(0, j.ObjectV2.ModTime)
	case DeleteType:
		return time.Unix(0, j.DeleteMarker.ModTime)
	case LegacyType:
		return j.ObjectV1.Stat.ModTime
	}
	return time.Time{}
}

// Get - returns the value of a key, if not found returns empty.
func (kvs KVS) Get(key string) string {
	v, ok := kvs.Lookup(key)
	if ok {
		return v
	}
	return ""
}

// Delete - deletes the key if present from the KV list.
func (kvs *KVS) Delete(key string) {
	for i, kv := range *kvs {
		if kv.Key == key {
			*kvs = append((*kvs)[:i], (*kvs)[i+1:]...)
			return
		}
	}
}