def METHOD_NAME(minutes, hours, days, months, start, expected_end):
    i = Item(
        validity_mode="dynamic",
        validity_dynamic_start_choice=True,
        validity_dynamic_duration_minutes=minutes,
        validity_dynamic_duration_hours=hours,
        validity_dynamic_duration_days=days,
        validity_dynamic_duration_months=months,
    )
    assert i.compute_validity(requested_start=start, override_tz=tz) == (start, expected_end)