"""Sample data classes.""" class SqlAlchemyDatabaseService: """Database service of an entity.""" def __init__(self, session, base_class): """Initialize object.""" self.session = session self.base_class = base_class class TokensService: """Tokens service.""" def __init__(self, id_generator, database): """Initialize object.""" self.id_generator = id_generator self.database = database class Token: """Token entity.""" class UsersService: """Users service.""" def __init__(self, id_generator, database): """Initialize object.""" self.id_generator = id_generator self.database = database class User: """User entity.""" # Sample objects session = object() id_generator = object()