String to ASCII Sum

Task: Write a function string$\_$to$\_$ascii$\_$sum$($s$)$ that converts each character in a string to its ASCII value and returns the sum of these values.

$[]$ def string$\_$to$\_$ascii$\_$sum$($s$)$:

# your implementation here

pass

# # Student Test Cases

# assert string$\_$to$\_$ascii$\_$sum$("$abc$")==294$

# assert string$\_$to$\_$ascii$\_$sum$("$A$")==65$

# assert string$\_$to$\_$ascii$\_$sum$("")==0$

$*$ For each of the functions below, at least two examples are provided to test your functions.

$$functions will be tested both with examples provided in each question and with extra examples.

Each function has to be documented with docstrings

$.$

$$In particular, each function has to have docstrings that specify: a

$.$description about what the function does

$($while mentioning parameter names$)$b$.$preconditions$,$ if any