What's the correct (tm) way of using `AnyPin` from esp-hal when I need to pass it into `esp_hal::mcpwm::operator::Operator::with_pin_a`?
Right now I have this:
```
pub struct MotorPins {
    pub a: AnyPin<Output<PushPull>, InputOutputPinType>,
    pub b: AnyPin<Output<PushPull>, InputOutputPinType>,
    pub c: AnyPin<Output<PushPull>, InputOutputPinType>,
}
```
which seems to build at least but I'm in doubt about the `InputOutputPinType` as that is `#[docs(hidden)]` 🤔