async def METHOD_NAME():
    async with database:
        d1 = Child(first_name="Daughter", last_name="1", born_year=1990)
        d2 = Child(first_name="Daughter", last_name="2", born_year=1991)
        await Child.objects.bulk_create([d1, d2])
        children = await Child.objects.filter(first_name="Daughter").all()
        assert len(children) == 2
        assert children[0].last_name == "1"
        for child in children:
            child.born_year = child.born_year - 100
        await Child.objects.bulk_update(children)
        children = await Child.objects.filter(first_name="Daughter").all()
        assert len(children) == 2
        assert children[0].born_year == 1890
        children = await Child.objects.fields(["first_name", "last_name"]).all()
        assert len(children) == 2
        for child in children:
            assert child.born_year is None
        await children[0].load()
        await children[0].delete()
        children = await Child.objects.all()
        assert len(children) == 1