InterruptRotator issue

[Rongit53]

First comment - really great job this library.
Using the InterruptRotator example for Arduino Nano I used pin 2 and 3 (#define PIN_IN1 2,
#define PIN_IN2 3) instead of #PIN_IN1 A2, #define PIN_IN2 A3 because it's just for Arduino Uno (what I understand)?
The compiling process stops with 'PIN_IN1/2' was not declared.
Hope, you can help.
Best regards, Ronald