Need some help with these methods in python.

Methods in python. def slice(self, start, end): Given two values start and end (where start list size. def swap(self, i, j): Given i and j, swap the list values at those positions. If either position is not valid, do nothing. As an example, if a list dList has the elements 1 2 3 4 5 6 7, then the call dList. swap(0, 3) would rearrange the list to 423156 7. def shuffle(self): Shuffle the contents of the list