$4.$ Write a python program that Define a function capitalize$\_$last$\_$name$()$ that accepts as argument a string with a $($single$)$ first and a $($single$)$ last name, and returns a string in which only the first letter of the first name is uppercase, whereas all letters of the last name are uppercase; in otherwords, 'marisa tomei' becomes 'Marisa TOMEI. $($Tip: use str$.$split$()$ to split a str into separate words.$)$

If something other than a str object is passed as an argument, the function should raise a TypeError. $($Tip: you can use isistance$)$ to check whether an object is of a particular type.$)$ If the str does not consist of exactly two words, the function should raise a ValueError$\mathrm{.}4.$ Write a python program that Define a function capitalize$\_$last$\_$name$()$ that accepts as argument a string with a $($single$)$ first and a $($single$)$ last name, and returns a string in which only the first letter of the first name is uppercase, whereas all letters of the last name are uppercase; in otherwords, 'marisa tomei' becomes 'Marisa TOMEI. $($Tip: use str$.$split$()$ to split a str into separate words.$)$

If something other than a str object is passed as an argument, the function should raise a TypeError. $($Tip: you can use isistance$)$ to check whether an object is of a particular type.$)$ If the str does not consist of exactly two words, the function should raise a ValueError.