Fixing Type Hints

The whole point of type hints is that they should match what the code actually does. If a function returns a string, its return type hint should also be str.

def get_quest_reward(quest_name: str, quest_xp: int) -> str:
    return f"You've earned {quest_xp} XP for completing the {quest_name} quest!"

An incorrect type hint is confusing at best, even if you can still force the Python code to run. Your editor will likely also warn you, with something like a red squiggly line, if a function returns a value that doesn't match its return type hint.