Don't use any AI tools to solve this do it completely by your own intelligence

Write a recursive function, digital_root, that takes a positive integer and returns its digital root. The digital root is the recursive sum of all the digits until a single-digit number is obtained. number =942 root = digital_root(number) print(root) \# Output should be 6 Explanation: (9+4+2=15, then 1+ 5=6) number =8765 root = digital_root(number) print(root) \# Output should be 8 Explanation: (8+7+6+5=26, then 2+6=8 )