code: def serialize(self, data):
          
  
          super(Serializer, self).serialize(data)
  
          self.resp.content_type += '; header=present'
          import pprint
          pprint.PrettyPrinter().pprint(data)
docs: Determine & invoke the proper serializer method
  
          If data is a list then the serialize_datas method will
          be run otherwise serialize_data.