Make flake8 happy

Simulation_engine/simulate_dotations.py

+
+
 def simulate(request_body):
     simulation_result = {"hello": "coucou"}  # construire le body de la response dans le handler ?
     return simulation_result

server/handlers/__init__.py

 from .cas_types import CasTypes, SimulationRunner  # noqa
 from .welcome import Welcome  # noqa
-from .dotations import Dotations
+from .dotations import Dotations  # noqa

server/handlers/dotations.py

 from Simulation_engine.simulate_dotations import simulate
 
+
 class Dotations(object):
 
     def simule_dotations(**params: dict) -> tuple: