# 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