bool isAlive(int unitHealth){ if(unitHealth > 0){ return true; } else { return false; } }In this example, the function takes an integer as a parameter which represents the unit's health. If the unit's health is greater than 0, the function returns true, indicating that the unit is still alive. Otherwise, it returns false, indicating that the unit is defeated or destroyed. The package library for this function would depend on the specific game or game engine it is used in. It could be part of a larger game development library or framework.