apply_risk_limits function not exist

File ~/Documents/GitHub/FinRL-Trading/src/strategies/ml_strategy.py:935, in MLStockSelectionStrategy.generate_weights(self, data, **kwargs)
932 weights_df['date'] = meta.get('trade_date')
934 # 应用风控限制与归一化
--> 935 weights_df = self.apply_risk_limits(weights_df)
937 result = StrategyResult(
938 strategy_name=self.config.name,
939 weights=weights_df,
(...) 945 }
946 )
948 self.logger.info(f"生成 ML 权重 {len(weights_df)} 只股票")

AttributeError: 'MLStockSelectionStrategy' object has no attribute 'apply_risk_limits'