'swap the implementation method on both'

def test_ir_sequence_date_range_3_write(self):

    domain = [('code', 'in', ['test_sequence_date_range_3', 'test_sequence_date_range_4'])]
    seqs = self.env['ir.sequence'].search(domain)
    seqs.write({'implementation': 'standard'})
    seqs.write({'implementation': 'no_gap'})
