Refactor file handling functions in helpers.py

src/utils/helpers.py

@@ -1,29 +1,33 @@
 import os
 
+
 def create_directory(directory):
     """
     Creates a directory if it doesn't exist.
     """
     if not os.path.exists(directory):
         os.makedirs(directory)
 
+
 def read_file(file_path):
     """
     Reads the contents of a file and returns them as a string.
     """
-    with open(file_path, 'r') as file:
+    with open(file_path, "r") as file:
         return file.read()
 
+
 def write_file(file_path, content):
     """
     Writes the given content to a file.
     """
-    with open(file_path, 'w') as file:
+    with open(file_path, "w") as file:
         file.write(content)
 
+
 def delete_file(file_path):
     """
     Deletes a file if it exists.
     """
     if os.path.exists(file_path):
-        os.remove(file_path)
+        os.remove(file_path)