def list_multipart_uploads(self, key_marker='',
                               upload_id_marker='',
                               headers=None):
        """
        List multipart upload objects within a bucket.  This returns an
        instance of an MultiPartUploadListResultSet that automatically
        handles all of the result paging, etc. from S3.  You just need
        to keep iterating until there are no more results.
        
        :type marker: string
        :param marker: The "marker" of where you are in the result set
        
        :rtype: :class:`boto.s3.bucketlistresultset.BucketListResultSet`
        :return: an instance of a BucketListResultSet that handles paging, etc
        """
        return MultiPartUploadListResultSet(self, key_marker,
                                            upload_id_marker,
                                            headers)
List multipart upload objects within a bucket.  This returns an
        instance of an MultiPartUploadListResultSet that automatically
        handles all of the result paging, etc. from S3.  You just need
        to keep iterating until there are no more results.
        
        :type marker: string
        :param marker: The "marker" of where you are in the result set
        
        :rtype: :class:`boto.s3.bucketlistresultset.BucketListResultSet`
        :return: an instance of a BucketListResultSet that handles paging, etc