code: def check_order(self, order: Order) -> bool:
      # check limit and suspended
      return self.is_stock_tradable(
          order.stock_id,
          order.start_time,
          order.end_time,
          order.direction,
      )
  
imports: from __future__ import annotations
  from collections import defaultdict
  from typing import TYPE_CHECKING, Any, Dict, List, Optional, Tuple, Type, Union, cast
  from ..utils.index_data import IndexData
  import random
  import numpy
  import pandas
  from qlib.backtest.position import BasePosition
  from ..config import C
  from ..constant import REG_CN, REG_TW
  from ..data.data import D
  from ..log import get_module_logger
  from .decision import Order, OrderDir, OrderHelper
  from .high_performance_ds import BaseQuote, NumpyQuote
label_desc: Use image node_id 9 for calling the Exchange obj's underlying member method code with example usage: obj.check_order(order) and returns: self