from pathlib import Path

def count$\_$file$\_$types$($folder: Path$)$:

file$\_$types $=\{\}$

for p in folder.iterdir$()$:

if p$.$is$\_$file$()$:

ext $=$ p$.$suffix

if ext in file$\_$types.keys$()$:

file$\_$types$[$ext$]+=1$

else:

file$\_$types$[$ext$]=1$

return file$\_$types