input: Write a function to modify the given Python program to print 'Happy Holidays' 10 times. The original program prints 'Hello World' 10 times. If the program is correctly modified, it should produce the desired output.
  assert modify_output()=="for i in range(10):\n    print('Happy Holidays')"
  assert modify_output()=="for i in range(10):\n    print('Hello World')"
  assert modify_output()=="for i in range(10):\n    print('Happy New Year')"
  assert modify_output()=="for i in range(10):\n    print('Goodbye')"
  assert modify_output()=="for i in range(10):\n    print('Happy New Year!')"
output: def modify_output():
      return "for i in range(10):\n    print('Happy Holidays')"