[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

src/pyflask/app.py

@@ -9,10 +9,8 @@
 from logging.handlers import RotatingFileHandler
 from pathlib import Path
 from signal import SIGINT
-
 from urllib.parse import unquote
 
-
 # https://stackoverflow.com/questions/32672596/pyinstaller-loads-script-multiple-times#comment103216434_32677108
 multiprocessing.freeze_support()
 
@@ -84,7 +82,6 @@ def post(self):
         selected_logger(message)
 
 
-
 @flask_api.route("/server_shutdown", endpoint="shutdown")
 @flask_api.doc(description="Close the Flask server.")
 class Shutdown(Resource):