IN python and $($No dictionaries, classes$)$ but you can use Functions, strings, lists, sets, loops if else also no breaks are allowed or continue statemetns and no global variables

Write a program that asks the user to enter a single$-$digit number sequentially with nothing separating them. The single$-$digit number must be inputted as a string not an int or float. Then display the sum of all the single digit numbers in the single$-$digit string

The main$()$ function template is provided for you below. Write the codes for the function string$\_$total$().$ You are not allowed to change anything in the main function template $($add$,$ delete or change$).$ Changing any single piece of code in the given main function template will result in a zero for this question. The main$()$ function must be placed at the bottom after all other functions.

def main$()$:

# Get a string of numbers as input from the user.

number$\_$string $=$ input$(\text{'}$Enter a sequence of digits with nothing separating them: $\text{'})$

# Call string$\_$total function, and store the total.

total $=$ string$\_$total$($number$\_$string$)$

# Display the total.

print$(\text{'}$The total of the digits in the string you entered is$\text{'},$ total$)$

$**$all functions must include docstrings and type hints$($annotations$).$ Programs with functions must have the statement at the end of the program before calling the main$()$ function. Functions must be separated with $2$ blank line spacings.

if $\_\_$name$\_\_=="\_\_$main$\_\_"$: