Closest Power Problem Description

main.py

def closest_power(base, num):
  '''
  base: base of the exponential, integer > 1
  num: number you want to be closest to, integer > 0
  Find the integer exponent such that base**exponent is closest to num.
  Note that the base**exponent may be either greater or smaller than num.
  In case of a tie, return the smaller value.
  Returns the exponent.
  '''
  # your code goes here
  pass

example1 = closest_power(3, 12) # should return 2
example2 = closest_power(4, 12) # should return 2
example3 = closest_power(4, 1) # should return 0