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