code: def cmp_public_numbers(pn1, pn2):
      
      if pn1.n == pn2.n:
          if pn1.e == pn2.e:
              return True
      return False
docs: Compare 2 sets of public numbers. These is a way to compare
      2 public RSA keys. If the sets are the same then the keys are the same.
  
      :param pn1: The set of values belonging to the 1st key
      :param pn2: The set of values belonging to the 2nd key
      :return: True is the sets are the same otherwise False.