code: def days_since_last_snowfall(self, value=99):
          
          if value is not None:
              try:
                  value = int(value)
              except ValueError:
                  raise ValueError(
                      'value {} need to be of type int '
                      'for field `days_since_last_snowfall`'.format(value))
  
          self._days_since_last_snowfall = value
docs: Corresponds to IDD Field `days_since_last_snowfall`
  
          Args:
              value (int): value for IDD Field `days_since_last_snowfall`
                  Missing value: 99
                  if `value` is None it will not be checked against the
                  specification and is assumed to be a missing value
  
          Raises:
              ValueError: if `value` is not a valid value