Question $1\mathrm{.}2$

Write a function called count$\_$file$\_$types that takes as input a folder $($a Path object$),$ and returns a dictionary with the number of files of each type in the folder. That is$,$ if the folder contains $2$ txt files and $3$ pdf files, then the returned dictionary will be

$\{\text{'}.$txt$\text{'}$:$2,\text{'}.$pdf$\text{'}$:$3\}$

Hints:

Use for p in folder.iterdir$()$ to iterate through the items in the folder.

Use is$\_$file$()$ to check that an item is a file $($and not a subdirectory$).$

Get a file's extension with p$.$suffix.

Check whether a string a is a key in a dictionary A with a in A$.$keys$().$