code: def _init_empty(self):
          
          self._jsondata = {
              "code": None,
              "currency": "EUR",
              "subject": "",
              "due_date": (datetime.datetime.now().date() + datetime.timedelta(days=14)).isoformat(),
              "issue_date": datetime.datetime.now().date().isoformat(),
              "number": None,
              "type": "outbound",
              "receiver": {
                  "name": "",
                  "email": "",
                  "street": "",
                  "city": "",
                  "postcode": "",
                  "country": ""
              },
              "items": [],
          }
docs: Creates the base set of attributes invoice has/needs