async def test_duplicate_values_kw(self):
    with self.assertRaisesRegex(FieldError, 'Duplicate key intnum'):
        (await IntFields.all().values('intnum', intnum='intnum_null'))
async def test_duplicate_values_kw(self):
    with self.assertRaisesRegex(FieldError, 'Duplicate key intnum'):
        (await IntFields.all().values('intnum', intnum='intnum_null'))