code: def verify(self) -> None:
          
          if not self.__protectedproperties.allready(self):
              raise RuntimeError(
                  'The shape of the the artificial neural network '
                  'parameter %s has not been defined so far.'
                  % objecttools.elementphrase(self))
docs: Raise a |RuntimeError| if the network's shape is not defined
          completely.
  
          >>> from hydpy import ANN
          >>> ANN(None).verify()
          Traceback (most recent call last):
          ...
          RuntimeError: The shape of the the artificial neural network \
  parameter `ann` of element `?` has not been defined so far.