    # File lib/fog/aws/requests/glacier/initiate_multipart_upload.rb, line 21
            def initiate_multipart_upload(name, part_size, options={})
              account_id = options['account_id'] || '-'
              path = "/#{account_id}/vaults/#{Fog::AWS.escape(name)}/multipart-uploads"

              headers = {'x-amz-part-size' => part_size.to_s}
              headers['x-amz-archive-description'] = options['description'] if options['description']
              request(
                :expects  => 201,
                :headers => headers,
                :method   => 'POST',
                :path     => path
              )
            end