def edit(self, body):
assert isinstance(body, (str, unicode)), body<EOL>post_parameters = {<EOL>"<STR_LIT:body>": body,<EOL>}<EOL>headers, data = self._requester.requestJsonAndCheck(<EOL>"<STR_LIT>",<EOL>self.url,<EOL>input=post_parameters<EOL>)<EOL>self._useAttributes(data)<EOL>
:calls: `PATCH /repos/:owner/:repo/pulls/comments/:number <http://developer.github.com/v3/pulls/comments>`_
:param body: string
:rtype: None