If a routine is clearly not related to the object instance ($self), make it a class method (shift off $class, call the method like this: My::Class->whatever() ) instead, because.. You almost certainly will want to override one of them
This is actually really annoying as an interface, because it means that whatever can't be exported. And in my experience, for every time you want to override a class method/function, there are hundreds of times you just want to call one.
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