我怎样才能告诉PyCharm期望的参数是什么类型?

When it comes to constructors, and assignments, and method calls, the PyCharm IDE is pretty good at analyzing my source code and figuring out what type each variable should be. I like it when it's right, because it gives me good code-completion and parameter info, and it gives me warnings if I try to access an attribute that doesn't exist.When it comes to constructors, and assignments,