code: def update(self, data):
          
          self.debug(data)
          url = "%(base)s/%(list_uuid)s/contacts/%(uuid)s" % {
              'base': self.local_base_url,
              'list_uuid': data.get('mailingListUuid'),
              'uuid': data.get('uuid')
          }
          return self.core.update(url, data)
docs: Update a list.