docs: def NAND(*args, **kwargs):
      """
      ALL args must raise an exception when called overall.
      Raise the specified exception on failure OR the first exception.
  
      :params iterable[Certifier] args:
          The certifiers to call
      :param callable kwargs['exc']:
          Callable that excepts the unexpectedly raised exception as argument and return an
          exception to raise.
      """
      errors = []
  
      for arg in args:
          try:
              arg()
          except CertifierError as e:
              errors.append(e)
  
      if (len(errors) != len(args)) and len(args) > 1:
          exc = kwargs.get(
              'exc',
              CertifierValueError('Expecting no certified values'),
          )
          if exc is not None:
              raise exc