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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def terminate(self, end):
 """ Set the value of the tail of the list. Adding values via :meth:`append` places them on the `FIRST` feature of some level of the feature structure (e.g., `REST.FIRST`), while :meth:`terminate` places them on the final `REST` feature (e.g., `REST.REST`). If *end* is a :class:`Conjunction` or :class:`Term`, it is typically a :class:`Coreference`, otherwise *end* is set to `tdl.EMPTY_LIST_TYPE` or `tdl.LIST_TYPE`. This method does not necessarily close the list; if *end* is `tdl.LIST_TYPE`, the list is left open, otherwise it is closed. Args: end (str, :class:`Conjunction`, :class:`Term`):
 value to use as the end of the list. """

        if self.terminated:
            raise TdlError('Cannot terminate a closed list.')
        if end == LIST_TYPE:
            self.terminated = False
        elif end == EMPTY_LIST_TYPE:
            if self._last_path:
                self[self._last_path] = None
            else:
                self._avm = None
            self.terminated = True
        elif self._last_path:
            self[self._last_path] = end
            self.terminated = True
        else:
            raise TdlError('Empty list must be {} or {}'.format(
                LIST_TYPE, EMPTY_LIST_TYPE))