    # File lib/fog/aws/requests/simpledb/list_domains.rb, line 35
            def list_domains(options = {})
              response = Excon::Response.new
              keys = self.data[:domains].keys
              max = options['MaxNumberOfDomains'] || keys.size
              offset = options['NextToken'] || 0
              domains = []
              for key, value in self.data[:domains].keys[offset...max]
                domains << key
              end
              response.status = 200
              response.body = {
                'BoxUsage'  => Fog::AWS::Mock.box_usage,
                'Domains'   => domains,
                'RequestId' => Fog::AWS::Mock.request_id
              }
              if max < keys.size
                response.body['NextToken'] = max + 1
              end
              response
            end