'This operation aborts a multipart upload identified by the
upload ID.
After the Abort Multipart Upload request succeeds, you cannot
upload any more parts to the multipart upload or complete the
multipart upload. Aborting a completed upload fails. However,
aborting an already-aborted upload will succeed, for a short
time. For more information about uploading a part and
completing a multipart upload, see UploadMultipartPart and
CompleteMultipartUpload.
This operation is idempotent.
An AWS account has full permission to perform all operations
(actions). However, AWS Identity and Access Management (IAM)
users don\'t have any permissions by default. You must grant
them explicit permission to perform specific actions. For more
information, see `Access Control Using AWS Identity and Access
Management (IAM)`_.
For conceptual information and underlying REST API, go to
`Working with Archives in Amazon Glacier`_ and `Abort
Multipart Upload`_ in the Amazon Glacier Developer Guide .
:type vault_name: string
:param vault_name: The name of the vault.
:type upload_id: string
:param upload_id: The upload ID of the multipart upload to delete.'

def abort_multipart_upload(self, vault_name, upload_id):

    uri = ('vaults/%s/multipart-uploads/%s' % (vault_name, upload_id))
    return self.make_request('DELETE', uri, ok_responses=(204,))
