♻️ Refactor: Added typehints

Author: Mr-Sunglasses

src/paste/utils.py

@@ -1,18 +1,19 @@
 import random
 import string
 import os
+from pathlib import Path
 
 
-def generate_uuid():
+def generate_uuid() -> str:
     # Combine uppercase letters, lowercase letters, and digits
-    characters = string.ascii_letters + string.digits
+    characters: str = string.ascii_letters + string.digits
 
     # Generate a random 4-character code
-    random_code = ''.join(random.choice(characters) for _ in range(4))
+    random_code: str = "".join(random.choice(characters) for _ in range(4))
 
     return random_code
 
 
-def extract_extension(file_name):
+def extract_extension(file_name: Path) -> str:
     _, extension = os.path.splitext(file_name)
     return extension