def mark_entries_as_unread(self, **kwargs):
response = self._requester.request(<EOL>'<STR_LIT>',<EOL>'<STR_LIT>'.format(<EOL>self._parent_type,<EOL>self._parent_id,<EOL>self.id<EOL>),<EOL>_kwargs=combine_kwargs(**kwargs)<EOL>)<EOL>return response.status_code == <NUM_LIT><EOL>
Mark the discussion topic and all its entries as unread.

:calls: `DELETE /api/v1/courses/:course_id/discussion_topics/:topic_id/read_all \
    <https://canvas.instructure.com/doc/api/discussion_topics.html#method.discussion_topics_api.mark_all_unread>`_

    or `DELETE /api/v1/groups/:group_id/discussion_topics/:topic_id/read_all \
    <https://canvas.instructure.com/doc/api/discussion_topics.html#method.discussion_topics_api.mark_all_unread>`_

:rtype: bool