docs: def update1(self, key: str, data: np.ndarray, size: int) -> None:
          """ Update one entry in specific record in datastore """
          print(data)
          if key in self.get_keys():
              self.data[key][data[0]] = data
          else:
              newdata = np.zeros((size, 6))
              newdata[data[0]] = data
              self.data[key] = newdata