code: def transit_rotate_key(self, name, mount_point='transit'):
          
          url = '/v1/{0}/keys/{1}/rotate'.format(mount_point, name)
          return self._adapter.post(url)
docs: POST /<mount_point>/keys/<name>/rotate
  
          :param name:
          :type name:
          :param mount_point:
          :type mount_point:
          :return:
          :rtype: