Question 3 50 Marks Write a function that takes a string as a parameter and returns the length of the last word as an integer. The string will contain at least one word, but it may end with multiple spaces. You may assume that any character that is not a space is a part of a word. 1 def last_word (s : str) - int : 2 # YOUR IMPLEMENTATION Examples of the function running should appear as follows: 1 last_word ('103') 2 3 3 last_word (' Tazmanian_Devil') 4 5 5 last_word ( ' I_want_to_go_home' ) 6 4 7 last_word (' I_want_to_go_home . _WWwww ) 8 5