请问在cta_strategy.engine 的 ctaengine引擎 的这个函数具体作用是啥
` def call_strategy_func(
self, strategy: CtaTemplate, func: Callable, params: Any = None
):
"""
Call function of a strategy and catch any exception raised.
"""
try:
if params:
func(params)
else:
func()
except Exception:
strategy.trading = False
strategy.inited = False

        msg = f"触发异常已停止\n{traceback.format_exc()}"
        self.write_log(msg, strategy)`

在触发异常的时候打印报错并且把交易状态和初始化状态变为false避免实盘出错