class_docstr: Strategy used to generate a trade decision with exactly one order.
code: def __init__(
      self,
      order: Order,
      trade_range: TradeRange | None = None,
  ) -> None:
      super().__init__()
  
      self._order = order
      self._trade_range = trade_range
  
file_path: qlib/qlib/rl/strategy/single_order.py
imports: from __future__ import annotations
  from qlib.backtest import Order
  from qlib.backtest.decision import OrderHelper, TradeDecisionWO, TradeRange
  from qlib.strategy.base import BaseStrategy
label_desc: Use image node_id 1 to create a new SingleOrderStrategy object from inherited base classes: BaseStrategy with example: obj = SingleOrderStrategy(order, trade_range)