NamespaceFormat = "namespace"

	// AccessFormat - access log format used in some event targets.
	AccessFormat = "access"

	// AMZTimeFormat - event time format.
	AMZTimeFormat = "2006-01-02T15:04:05.000Z"

	// StoreExtension - file extension of an event file in store
	StoreExtension = ".event"
)

// Identity represents access key who caused the event.
type Identity struct {

type GetObjectContext struct {
	OutputRoute string `json:"outputRoute"`
	OutputToken string `json:"outputToken"`
	InputS3URL  string `json:"inputS3Url"`
}

// Event represents lambda function event, this is undocumented in AWS S3. This
// structure bases itself on this structure but there is no binding.
//
//	{
//	  "xAmzRequestId": "a2871150-1df5-4dc9-ad9f-3da283ca1bf3",
//	  "getObjectContext": {
//	    "outputRoute": "...",

	if escape {
		keyName = url.QueryEscape(args.Object.Name)
	}

	newEvent := event.Event{
		EventVersion:      "2.0",
		EventSource:       "minio:s3",
		AwsRegion:         args.ReqParams["region"],
		EventTime:         eventTime.Format(event.AMZTimeFormat),
		EventName:         args.EventName,
		UserIdentity:      event.Identity{PrincipalID: args.ReqParams["principalId"]},
		RequestParameters: args.ReqParams,

	}
	return err
}

// send - sends an event to the webhook.
func (target *WebhookTarget) send(eventData event.Event) error {
	objectName, err := url.QueryUnescape(eventData.S3.Object.Key)
	if err != nil {
		return err
	}
	key := eventData.S3.Bucket.Name + "/" + objectName

	data, err := json.Marshal(event.Log{EventName: eventData.EventName, Key: key, Records: []event.Event{eventData}})
	if err != nil {
		return err
	}

}

func (target *KafkaTarget) toProducerMessage(eventData event.Event) (*sarama.ProducerMessage, error) {
	objectName, err := url.QueryUnescape(eventData.S3.Object.Key)
	if err != nil {
		return nil, err
	}

	key := eventData.S3.Bucket.Name + "/" + objectName
	data, err := json.Marshal(event.Log{EventName: eventData.EventName, Key: key, Records: []event.Event{eventData}})
	if err != nil {
		return nil, err
	}

}

// send - sends an event to the Nats.
func (target *NATSTarget) send(eventData event.Event) error {
	objectName, err := url.QueryUnescape(eventData.S3.Object.Key)
	if err != nil {
		return err
	}
	key := eventData.S3.Bucket.Name + "/" + objectName

	data, err := json.Marshal(event.Log{EventName: eventData.EventName, Key: key, Records: []event.Event{eventData}})
	if err != nil {
		return err
	}

		buf := bytes.NewBuffer(grid.GetByteBuffer()[:0])
		enc := json.NewEncoder(buf)
		tmpEvt := struct{ Records []event.Event }{[]event.Event{{}}}
		for {
			select {
			case ev := <-localCh:
				buf.Reset()
				tmpEvt.Records[0] = ev
				if err := enc.Encode(tmpEvt); err != nil {
					bugLogIf(ctx, err, "event: Encode failed")
					continue
				}
				mergeCh <- append(grid.GetByteBuffer()[:0], buf.Bytes()...)

	for k, v := range list.targets {
		ntargets[k] = v
	}
	return ntargets
}

// Send - sends events to targets identified by target IDs.
func (list *TargetList) Send(event Event, id TargetID) (*http.Response, error) {
	list.RLock()
	target, ok := list.targets[id]
	list.RUnlock()
	if ok {
		return target.Send(event)
	}
	return nil, ErrARNNotFound{}
}

// Stats returns stats for targets.

        config=Config(signature_version='s3v4'),
        region_name='us-east-1')


def _add_header(request, **kwargs):
    request.headers.add_header('x-minio-extract', 'true')
event_system = s3.meta.events
event_system.register_first('before-sign.s3.*', _add_header)

# List zip contents
response = s3.list_objects_v2(Bucket="your-bucket", Prefix="path/to/file.zip/")
print(response)

// Refer http://docs.aws.amazon.com/AmazonS3/latest/dev/NotificationHowTo.html#notification-how-to-event-types-and-destinations
// for most basic values we have since extend this and its not really much applicable other than a reference point.
// "s3:Replication:OperationCompletedReplication" is a MinIO extension.
type Name int

// Values of event Name
const (
	// Single event types (does not require expansion)