How to add fractional type Schedule using Openstudio SDK

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This the code snippet I am using to set a schedule where my requirement is a fractional type schedule but it auto sets it as dimensionless

new_schedule = os.model.ScheduleRuleset(model1)
new_schedule.setName("New Schedule")
schedule_limits = os.model.ScheduleTypeLimits(model1)
schedule_limits.setName("New Schedule Type Limits")
schedule_limits.setUnitType("Fractional")
display=schedule_limits.unitType()
print(display)
schedule_limits.setLowerLimitValue(0.0)
schedule_limits.setUpperLimitValue(1.0)
new_schedule.setScheduleTypeLimits(schedule_limits)
hourly_values = [0.0] * 24
hourly_values[8:18] = [1.0] * 10 
schedule_day = os.model.ScheduleDay(model1,24) 
schedule_day.values = hourly_values
print(schedule_day.values)

Thanks