// then it is implicit on for the sub-system.
			enabled = true
		}
		v, _ := currKVS.Lookup(hkv.Key)
		if v == "" && !hkv.Optional && enabled {
			// Return error only if the
			// key is enabled, for state=off
			// let it be empty.
			return false, Errorf(
				"'%s' is not optional for '%s' sub-system, please check '%s' documentation",
				hkv.Key, subSys, subSys)
		}
	}
	c[subSys][tgt] = currKVS

		if s3Err != ErrNone {
			writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL)
			return
		}
	case authTypeStreamingUnsignedTrailer:
		// Initialize stream chunked reader with optional trailers.
		rd, s3Err = newUnsignedV4ChunkedReader(r, true)
		if s3Err != ErrNone {
			writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL)
			return
		}
	case authTypeSignedV2, authTypePresignedV2:

)

//go:generate msgp -file $GOFILE

// replicate:
//   # source of the objects to be replicated
//   source:
//     type: "minio"
//     bucket: "testbucket"
//     prefix: "spark/"
//
//   # optional flags based filtering criteria
//   # for source objects
//   flags:
//     filter:
//       newerThan: "7d"
//       olderThan: "7d"
//       createdAfter: "date"
//       createdBefore: "date"
//       tags:

// take a look at the package documentation.
type ETag []byte

// String returns the string representation of the ETag.
//
// The returned string is a hex representation of the
// binary ETag with an optional '-<part-number>' suffix.
func (e ETag) String() string {
	if e.IsMultipart() {
		return hex.EncodeToString(e[:16]) + string(e[16:])
	}
	return hex.EncodeToString(e)
}

		},
		config.HelpKV{
			Key:         RoleID,
			Description: "unique ID to generate the ARN" + defaultHelpPostfix(RoleID),
			Optional:    true,
			Type:        "string",
		},
		config.HelpKV{
			Key:         config.Comment,
			Description: config.DefaultComment,
			Optional:    true,
			Type:        "sentence",
		},
	}
)

// Allows only Base64 URL encoding characters.

	if !ok {
		err := fmt.Errorf("Incorrect type for start index argument in %s", sqlFnSubstring)
		return nil, errIncorrectSQLFunctionArgumentType(err)
	}

	length := -1
	// Evaluate the optional FOR argument
	if arg3 != nil {
		v3, err := arg3.evalNode(r, tableAlias)
		if err != nil {
			return nil, err
		}
		inferTypeForArithOp(v3)
		lenInt, ok := v3.ToInt()
		if !ok {

func DomainPort(domainPort string) EtcdOption {
	return func(args *CoreDNS) {
		args.domainPort = domainPort
	}
}

// CoreDNSPath - custom prefix on etcd to populate DNS
// service records, optional and can be empty.
// if empty then c.prefixPath is used i.e "/skydns"
func CoreDNSPath(prefix string) EtcdOption {
	return func(args *CoreDNS) {
		args.prefixPath = prefix
	}
}

	}

	for i, n := range names {
		switch sniff[i] {
		default:
			if sniff[i]&notDeclared != 0 && optional[n] {
				// Ignore optional undeclared identifiers.
				// Don't report an error, and skip adding n to the needType array.
				continue
			}
			error_(f.NamePos[n], "could not determine kind of name for C.%s", fixGo(n.Go))

	paxHdrs = make(map[string]string)

	var whyNoUSTAR, whyNoPAX, whyNoGNU string
	var preferPAX bool // Prefer PAX over USTAR
	verifyString := func(s string, size int, name, paxKey string) {
		// NUL-terminator is optional for path and linkpath.
		// Technically, it is required for uname and gname,
		// but neither GNU nor BSD tar checks for it.
		tooLong := len(s) > size
		allowLongGNU := paxKey == paxPath || paxKey == paxLinkpath

	// indicates if the disk is being healed and scanner
	// should skip healing the disk
	SkipHealing bool

	// Active lifecycle, if any on the bucket
	lifeCycle *lifecycle.Lifecycle `msg:"-"`

	// optional updates channel.
	// If set updates will be sent regularly to this channel.
	// Will not be closed when returned.
	updates     chan<- dataUsageEntry `msg:"-"`
	replication replicationConfig     `msg:"-"`
}