docs: def _post_load(self, response, verbose):
          """
          post load processing
          fills the self._items collection
          """
          try:
              if verbose:
                  print response.content
              log.debug(response.content)
          except Exception, e:
              raise e
              
          if response is not None and response.status_code == 200:
              types = helpers.pluralize(self.resource_type)
              #print "types %s" % types
              body = json.loads(response.content, encoding='utf-8')
              self.total_entries = body['collection']['total_entries']
              self.total_pages = body['collection']['total_pages']
              self.current_page = body['collection']['current_page']
              ## now get the items from the class factory
              if self.total_entries != 0:
                  for response_item in body[types]:
                      obj = self._response_item_to_object(response_item)
                      ## add the items
                      self._items.append(obj)
              
          else:
              msg = u"Fetching failed, an error happend"
              raise SalesKingException("LOAD_ERROR", msg, response)
          
          return self