},
				{
					Object:   objectNames[0],
					UploadID: uploadIDs[2],
				},
				{
					Object:   objectNames[0],
					UploadID: uploadIDs[3],
				},
			},
		},
		// listMultipartResults - 17.
		// Testing for listing of 3 uploadID's (uploadIDs[1-3]) for a given object with uploadID Marker set.
		// uploadIDs[1] is set as UploadMarker, Expecting it to be skipped in the result.

		{bucketName, objectName, uploadIDs[0], 1, "abcd", "e2fc714c4727ee9395f324cd2e7f331f", int64(len("abcd"))},
		{bucketName, objectName, uploadIDs[0], 2, "efgh", "1f7690ebdd9b4caf8fab49ca1757bf27", int64(len("efgh"))},
		{bucketName, objectName, uploadIDs[0], 3, "ijkl", "09a0877d04abf8759f99adec02baf579", int64(len("abcd"))},
		{bucketName, objectName, uploadIDs[0], 4, "mnop", "e132e96a5ddad6da8b07bba6f6131fef", int64(len("abcd"))},

	if uploadIDMarker != "" {
		for uploadIndex < len(uploads) {
			if uploads[uploadIndex].UploadID != uploadIDMarker {
				uploadIndex++
				continue
			}
			if uploads[uploadIndex].UploadID == uploadIDMarker {
				uploadIndex++
				break
			}
			uploadIndex++
		}
	}
	for uploadIndex < len(uploads) {
		result.Uploads = append(result.Uploads, uploads[uploadIndex])

	credentials := globalActiveCred

	curTime := UTCNow()
	curTimePlus5Min := curTime.Add(time.Minute * 5)

	// bucketnames[0].
	// objectNames[0].
	// uploadIds [0].
	// Create bucket before initiating NewMultipartUpload.
	err := obj.MakeBucket(context.Background(), bucketName, MakeBucketOptions{})
	if err != nil {
		// Failed to create newbucket, abort.

e.g., To scan objects stored under `user-uploads/` prefix and remove versions older than one year.

```
{
    "Rules": [
        {
            "ID": "Removing all old versions",
            "Filter": {
                "Prefix": "users-uploads/"
            },
            "NoncurrentVersionExpiration": {
                "NoncurrentDays": 365
            },

						opts.concurrencyStart, opts.duration)
				}

				// if the default concurrency yields zero results, throw an error.
				if throughputHighestResults[i].Uploads == 0 && opts.concurrencyStart == concurrency {
					errStr = fmt.Sprintf("no results for uploads upon first attempt, concurrency %d and duration %s",
						opts.concurrencyStart, opts.duration)
				}

		}
	}
	listMultipartUploadsResponse.Uploads = make([]Upload, len(multipartsInfo.Uploads))
	for index, upload := range multipartsInfo.Uploads {
		newUpload := Upload{}
		newUpload.UploadID = upload.UploadID
		newUpload.Key = s3EncodeName(upload.Object, encodingType)
		newUpload.Initiated = amztime.ISO8601Format(upload.Initiated.UTC())
		listMultipartUploadsResponse.Uploads[index] = newUpload
	}

	// Maximum number of multipart uploads that could have been included in the
	// response.
	MaxUploads int

	// Indicates whether the returned list of multipart uploads is truncated. A
	// value of true indicates that the list was truncated. The list can be truncated
	// if the number of multipart uploads exceeds the limit allowed or specified
	// by max uploads.
	IsTruncated bool

You can also use `File()` with `UploadFile`, for example, to set additional metadata:

{* ../../docs_src/request_files/tutorial001_03_an_py39.py hl[9,15] *}

## Multiple File Uploads { #multiple-file-uploads }

It's possible to upload several files at the same time.

They would be associated to the same "form field" sent using "form data".

To use that, declare a list of `bytes` or `UploadFile`:

fs.s3a.fast.upload.active.blocks=2048 # Number of parallel uploads
fs.s3a.fast.upload.buffer=disk # Use disk as the buffer for uploads
fs.s3a.fast.upload=true # Turn on fast upload mode
fs.s3a.max.total.tasks=2048 # Maximum number of parallel tasks
fs.s3a.multipart.size=512M # Size of each multipart chunk
fs.s3a.multipart.threshold=512M # Size before using multipart uploads
fs.s3a.socket.recv.buffer=65536 # Read socket buffer hint