Challenge: Power-up the Hero

Create a factory function that generates custom power-ups for a hero. Each power-up should remember its own multiplier and apply it to a hero's base stat, demonstrating closure behavior by allowing the inner function to remember the multiplier provided to the outer function.

• Define an inner function inside create_power_up that takes a single argument base_stat and multiplies it by multiplier.
• Return this inner function from create_power_up.
• Use create_power_up to create two power-ups: one that doubles and one that triples a stat.
• Apply these power-ups to a hero's attack and defense stats and print the results.