想要添加一个自己的策略，可以看到策略的名字，但是添加的时候看不到设置的参数，并提示以下错误：
Traceback (most recent call last):
File "c:\vnstudio\lib\site-packages\vnpy\app\cta_strategy\ui\widget.py", line 149, in add_strategy
class_name, strategy_name, vt_symbol, setting
File "c:\vnstudio\lib\site-packages\vnpy\app\cta_strategy\engine.py", line 611, in add_strategy
strategy = strategy_class(self, strategy_name, vt_symbol, setting)
TypeError: init() takes 3 positional arguments but 5 were given
想请教如何解决？

对于CTA策略开发的问题，vnpy-community公众号里的【全实战进阶】教程有详细讲解