# File lib/fog/shared_file_system/openstack/requests/update_snapshot.rb, line 16
        def update_snapshot(id, options = {})
          # stringify keys
          options = Hash[options.map { |k, v| [k.to_s, v] }]

          data[:snapshot_updated]       = data[:snapshots_detail].first.merge(options)
          data[:snapshot_updated]['id'] = id

          response = Excon::Response.new
          response.status = 200
          response.body = {'snapshot' => data[:snapshot_updated]}
          response
        end