begin-multipart.xml

<?xml version="1.0" encoding="UTF-8"?>
<InitiateMultipartUploadResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
  <Bucket>static-images</Bucket>
  <Key>multipart-file.tar.gz</Key>
  <UploadId>2~iCw_lDY8VoBhoRrIJbPMrUqnE3Z-3Qh</UploadId>
</InitiateMultipartUploadResult>