如何将参数传递给PyQt中的回调函数

I have around 10 QAction (this number will vary in runtime) in a toolbar, which all will do same thing, but using different parameters. I am thinking to add parameter as an attribute to QAction object, and then, QAction's triggered signal will also send object's itself to the callback function, so that I could get required parameters for the function. I have actually 2 questions about this:I have around 10 QAction (this number will vary