Optional:    true,
			Type:        "sentence",
		},
	}

	HelpKafka = config.HelpKVS{
		config.HelpKV{
			Key:         KafkaBrokers,
			Description: "comma separated list of Kafka broker addresses",
			Type:        "csv",
		},
		config.HelpKV{
			Key:         KafkaTopic,
			Description: "Kafka topic used for bucket notifications",
			Optional:    true,
			Type:        "string",
		},

	// We use one bit to distinguish between the two ranges.
	aixAddrBits = 57
	aixTagBits  = 64 - aixAddrBits + 3

	// riscv64 SV57 mode gives 56 bits of userspace VA.
	// tagged pointer code supports it,
	// but broader support for SV57 mode is incomplete,
	// and there may be other issues (see #54104).
	riscv64AddrBits = 56
	riscv64TagBits  = 64 - riscv64AddrBits + 3
)

// The number of bits stored in the numeric tag of a taggedPointer

	EnvMQTTQueueLimit        = "MINIO_NOTIFY_MQTT_QUEUE_LIMIT"
)

// MQTTArgs - MQTT target arguments.
type MQTTArgs struct {
	Enable               bool           `json:"enable"`
	Broker               xnet.URL       `json:"broker"`
	Topic                string         `json:"topic"`
	QoS                  byte           `json:"qos"`
	User                 string         `json:"username"`

	return newThrottledUpgradeAwareProxyHandler(location, transport, true, false, responder), nil
}

// Support both GET and POST methods. We must support GET for browsers that want to use WebSockets.
var upgradeableMethods = []string{"GET", "POST"}

// AttachREST implements the attach subresource for a Pod
type AttachREST struct {
	Store       *genericregistry.Store