:calls: `POST /repos/:owner/:repo/pulls/:number/comments <http://developer.github.com/v3/pulls/comments>`_
        :param body: string
        :param commit_id: :class:`github.Commit.Commit`
        :param path: string
        :param position: integer
        :rtype: :class:`github.PullRequestComment.PullRequestComment`

def create_review_comment(self, body, commit_id, path, position):
        """
        :calls: `POST /repos/:owner/:repo/pulls/:number/comments <http://developer.github.com/v3/pulls/comments>`_
        :param body: string
        :param commit_id: :class:`github.Commit.Commit`
        :param path: string
        :param position: integer
        :rtype: :class:`github.PullRequestComment.PullRequestComment`
        """
        assert isinstance(body, (str, unicode)), body
        assert isinstance(commit_id, github.Commit.Commit), commit_id
        assert isinstance(path, (str, unicode)), path
        assert isinstance(position, (int, long)), position
        post_parameters = {
            "body": body,
            "commit_id": commit_id._identity,
            "path": path,
            "position": position,
        }
        headers, data = self._requester.requestJsonAndCheck(
            "POST",
            self.url + "/comments",
            input=post_parameters
        )
        return github.PullRequestComment.PullRequestComment(self._requester, headers, data, completed=True)