import databases import ormar import sqlalchemy database = databases.Database("sqlite:///db.sqlite") metadata = sqlalchemy.MetaData() class Course(ormar.Model): ormar_config = ormar.OrmarConfig( database=database, metadata=metadata, ) id: int = ormar.Integer(primary_key=True) name: str = ormar.String(max_length=100) completed: bool = ormar.Boolean(default=False) @property def prefixed_name(self): return "custom_prefix__" + self.name