def add_record(self, length):
        # type: (int) -> None
        '''
        Add some more length to this CE record.  Used when a new record is going
        to get recorded into the CE (rather than the DR).

        Parameters:
         length - The length to add to this CE record.
        Returns:
         Nothing.
        '''
        if not self._initialized:
            raise pycdlibexception.PyCdlibInternalError('CE record not yet initialized!')

        self.len_cont_area += length
Add some more length to this CE record.  Used when a new record is going
        to get recorded into the CE (rather than the DR).

        Parameters:
         length - The length to add to this CE record.
        Returns:
         Nothing.