Jetbrains / Intellij键盘快捷键可以折叠所有的方法

I'm working on some legacy code that has a class that is 10,000+ lines of code and has 100s of methods. Is there a shortcut for any jetbrains IDE (since the shortcut would likely be shared across all of them) to collapse all the methods / functions so that only the method signatures are shown? I'm working on some legacy code that has a clas