python / Write a function called my_sum with one parameter, assumed to be a non-negative integer. Return the sum of all integers between 0 and this number, inclusive.

Write a function called my_sum with one parameter, assumed to be a non-negative integer. Return the sum of all integers between 0 and this number, inclusive. For example: Test print (my_sum (0)) print (my_sum(3)) Result 0 6