    # File lib/fog/openstack/requests/compute/attach_volume.rb, line 6
            def attach_volume(volume_id, server_id, device)
              data = {
                'volumeAttachment' => {
                  'volumeId' => volume_id.to_s,
                  'device'   => device
                }
              }
              request(
                :body     => MultiJson.encode(data),
                :expects  => [200, 202],
                :method   => 'POST',
                :path     => "servers/%s/os-volume_attachments" % [server_id]
              )
            end