Problem $2\mathrm{.}2(10$ pts$)$ Write the Python code to implement the function count$\_$digits that takes an integer.

The function returns the number of digits in that integer. $\%10$ and $//10$ are useful here.

Examples:

$>>>$ count$\_$digits$(6589)$

$4$

$>>>$ count$\_$digits$(-6589)$

$4$

$>>>$ count$\_$digits$(123456788)$

$9$