同步
# sync_session
# example(id, name)
e = example(name="name1")
db.add(e)
db.flush()
print(e.id) # id = 1
异步
# async_session
# example(id, name)
e = example(name="name1")
db.add(e)
await db.flush()
await db.commit()
await db.refresh(e)
print(e.id) # id = 1