class EngineService():


    def __init__(self):
        pass


    def activate_engine(self, engine_number):
        """
        Activates one engine and deactivates the other

        Args:
            engine_number (Integer): Number of the engine
        """
        return 'do some magic!'


    def get_active_engine(self):
        """
        Retrieves the status entry of the currently active engine

        Returns:
            StatusEntry
        """
        return 'do some magic!'


    def get_engine_health(self, engine_number):
        """
        Retrieves the most recent health info of the requested engine

        Args:
            engine_number (Integer): Number of the engine


        Returns:
            (HealthInfo)
        """
        return 'do some magic!'


    def log_engine_health(self, engine_number):
        """
        Logs another health entry for the given engine

        Args:
            engine_number (Integer): Number of the engine

        """
        return 'do some magic!'



engineService = EngineService()