make pre_cycle_setup faster on 4 sec, start implemtnation disable redirect stdout in router

src/argenta/metrics/main.py

@@ -2,15 +2,15 @@ import io
 from contextlib import redirect_stdout
 from time import time
 
-from argenta.router import Router
-from argenta.command import Command
-from argenta.response import Response
-from argenta.response.status import Status
-from argenta.command.flag import Flag, Flags
 from argenta.app import App
 
 
 def get_time_of_pre_cycle_setup(app: App) -> float:
+    """
+    Public. Return time of pre cycle setup
+    :param app: app instance for testing time of pre cycle setup
+    :return: time of pre cycle setup as float
+    """
     start = time()
     with redirect_stdout(io.StringIO()):
         app.pre_cycle_setup()