from typing import Optional from sqlmodel import Field from learn_sql_model.models.fast_model import FastModel class Pet(FastModel, table=True): id: Optional[int] = Field(default=None, primary_key=True) name: str = "Jim" # age: Optional[int] = None # hero_id: int = Field(default=None, foreign_key="hero.id") # hero: Optional[Hero] = Relationship(back_populates="pets")