def dismiss(self, message):
assert isinstance(message, (str, unicode)), message<EOL>post_parameters = {'<STR_LIT:message>': message}<EOL>headers, data = self._requester.requestJsonAndCheck(<EOL>"<STR_LIT>",<EOL>self.pull_request_url + "<STR_LIT>" % self.id,<EOL>input=post_parameters<EOL>)<EOL>
:calls: `PUT /repos/:owner/:repo/pulls/:number/reviews/:review_id/dismissals <https://developer.github.com/v3/pulls/reviews/>`_
:rtype: None