code: def lookup_order(self, order_id):
          
          self._log('look up order(s) {}'.format(order_id))
          return self._rest_client.post(
              endpoint='/lookup_order',
              payload={'id': order_id}
          )
docs: Look up one or more orders by ID (64 hexadecmial characters).
  
          :param order_id: Order ID or list of order IDs.
          :type order_id: str | unicode | [str | unicode]
          :return: Order details.
          :rtype: [dict]