How to use the ogame.constants function in ogame

                        def build(): return ogame.build(const.solar_plant.metal_mine, id)

                        def build(): return ogame.build(const.buildings.missile_silo, id)

def get_code(name):
    if name in constants.Buildings.keys():
        return constants.Buildings[name]
    if name in constants.Facilities.keys():
        return constants.Facilities[name]
    if name in constants.Defense.keys():
        return constants.Defense[name]
    if name in constants.Ships.keys():
        return constants.Ships[name]
    if name in constants.Research.keys():
        return constants.Research[name]
    print('Couldn\'t find code for {}'.format(name))
    return None

if not self.is_logged(res):
            raise NOT_LOGGED
        payload = {}
        payload.update(get_hidden_fields(res))
        for name, value in ships:
            payload['am{}'.format(name)] = value
        res = self.session.post(self.get_url('fleet2'), data=payload).content

        payload = {}
        payload.update(get_hidden_fields(res))
        payload.update({'speed': speed,
                        'galaxy': where.get('galaxy'),
                        'system': where.get('system'),
                        'position': where.get('position'),
                        'type': where.get('type', 1)})
        if mission == constants.Missions['RecycleDebrisField']:
            # planet type: 1
            # debris type: 2
            # moon type: 3
            payload.update({'type': 2}) # Send to debris field
        res = self.session.post(self.get_url('fleet3'), data=payload).content

        payload = {}
        payload.update(get_hidden_fields(res))
        payload.update({'crystal': resources.get('crystal'),
                        'deuterium': resources.get('deuterium'),
                        'metal': resources.get('metal'),
                        'mission': mission})
        res = self.session.post(self.get_url('movement'), data=payload).content

        res = self.session.get(self.get_url('movement')).content
        soup = BeautifulSoup(res, 'html.parser')

def facilities(self, id):
        response = self.session.get(self.index_php + 'page=ingame&component=facilities&cp={}'.format(id)).text
        html = OGame.HTML(response)
        levels = [int(level) for level in html.find_all('class', 'level', 'attribute', 'data-value', exact=True)]
        status = html.find_all('data-technology', '', 'attribute', 'data-status')

        class robotics_factory_class:
            level = levels[0]
            data = OGame.collect_status(status[0])
            is_possible = data[0]
            in_construction = data[1]
            cost = const.price(const.buildings.robotics_factory, level=level)

        class shipyard_class:
            level = levels[1]
            data = OGame.collect_status(status[1])
            is_possible = data[0]
            in_construction = data[1]
            cost = const.price(const.buildings.shipyard, level=level)

        class research_laboratory_class:
            level = levels[2]
            data = OGame.collect_status(status[2])
            is_possible = data[0]
            in_construction = data[1]
            cost = const.price(const.buildings.research_laboratory, level=level)

        class alliance_depot_class: