Retrieves a single bug by it's Launchpad bug_id

            :param bug_id: The Launchpad id for the bug.

def get_bug_by_id(self, bug_id):
        """ Retrieves a single bug by it's Launchpad bug_id

            :param bug_id: The Launchpad id for the bug.
        """
        uri = '{base}/bugs/{bug_id}'.format(base=self.BASE_URI, bug_id=bug_id)
        resp = self._client.get(uri, model=models.Bug)

        return resp