Add second disk on flavor vsi

import SoftLayer
import json

class example():
    def __init__(self):        
        self.client = SoftLayer.Client()
        self.orderData = {}
    
    # Retrieve the packageId and presetId with which the device was ordered
    # and set them in the orderData
    def setPackageAndPreset(self, guestId):
        mask = "mask[id,orderItem[package,presetId]]"

        item = self.client['Virtual_Guest'].getBillingItem(id=guestId, mask=mask)
        
        self.orderData['packageId'] = item['orderItem']['package']['id']
        self.orderData['presetId'] = item['orderItem']['presetId']

    def addSecondDisk(self, guestId, priceId=None, note=None, date="NOW"):
        self.setPackageAndPreset(guestId)
        
        prices = [{
            'id': priceId,
            'categories': [{
                'categoryCode': 'guest_disk1',    #second disk
                'complexType': 'SoftLayer_Product_Item_Category'
            }],
            'complexType': 'SoftLayer_Product_Item_Price'
        }]

        # Build a skeleton SoftLayer_Container_Product_Order_Virtual_Guest_Upgrade object
        # containing the upgrade you wish to place.
        properties = [
            {
                'name': 'NOTE_GENERAL',
                'value': note
            },   
            {
                'name': 'MAINTENANCE_WINDOW',
                'value': date
            }
        ]

        self.orderData['virtualGuests'] = [{'id': guestId}]
        self.orderData['prices'] = prices
        self.orderData['properties'] = properties
        self.orderData['complexType'] = 'SoftLayer_Container_Product_Order_Virtual_Guest_Upgrade'
        
        try:
            """
            Use verifyOrder method to test that your upgrade is fine and
            when you are ready you can call the placeOrder method.
            """
            result = self.client['Product_Order'].verifyOrder(self.orderData)
            print(json.dumps(result, sort_keys=True, indent=2, separators=(',', ': ')))
        except SoftLayer.SoftLayerAPIError as e:
            """
            If there was an error returned from the SoftLayer API then bomb out with the
            error message.
            """
            print("Unable to upgrade VSI faultCode=%s, faultString=%s" % (e.faultCode, e.faultString))

if __name__ == "__main__":    
    # ID of virtual guest you want to add a second disk
    guestID = 58670025

    # The price id of disk you want to add as second disk. To get prices
    # you can call the SoftLayer_Virtual_Guest::getUpgradeItemPrices method
    priceID = 204661   # 100 GB (LOCAL)

    note = "adding second disk"
    date = "NOW"

    # Start the script
    main = example()
    
    main.addSecondDisk(guestID, priceId=priceID, note=note, date=date)