code: def create_item(self, item):
          
          item_dict = {
              'project_id': item.project_id,
              'from_user_id': item.from_user_id,
              'to_user_id': item.to_user_id,
              'role': item.auth_role,
              'user_message': item.user_message
          }
          if item.share_user_ids:
              item_dict['share_user_ids'] = item.share_user_ids
          data = json.dumps(item_dict)
          resp = requests.post(self.make_url(item.destination), headers=self.json_headers, data=data)
          self.check_response(resp)
          return resp
docs: Create a new item in D4S2 service for item at the specified destination.
          :param item: D4S2Item data to use for creating a D4S2 item
          :return: requests.Response containing the successful result