azure-iot-sdk-python | Python SDK for connecting devices | Azure library

I want to change a "desired" property of an Device Twin in Iot-Hub.

I want the element name of the property to be an integer value, e.g.:

I want to automatically associate my device with its template. There is an article about this here: https://docs.microsoft.com/en-us/azure/iot-central/core/concepts-get-connected#automatically-associate-with-a-device-template

the sample code for this is in JS and says to include iotcModelId: '< this is the URN for the capability model>'; OR '__iot:interfaces': { CapabilityModelId: }

I can see in the python device SDK documentation on keyword args available during client creation. https://github.com/Azure/azure-iot-sdk-python/wiki/key-word-arguments-during-client-creations

But I don't see anything in those keywords about the device template. I've tried a couple of permutations on my own, but nothing seems to work as I'm registering my device using ProvisioningDeviceClient.create_from_x509_certificate.

Anyone know the correct way to include the device template in the registration?

I have found links from Azure GitHub repo that we can create relationship of parent child between Edge device and leaf device using Java and Python language but I have not found the api/interface to that in NodeJS sdk provided by Azure. Has anyone implemented this in NodeJS?

The context is to apply the scenario described in the following page by packaging the app in a snap so that I can use it in different linux distributions (e.g. Ubuntu Core)

https://docs.microsoft.com/en-us/azure/iot-hub/quickstart-send-telemetry-python

When I execute the app as a script through terminal, everything runs as supposed. After creating the snap and trying to execute it I get the following error:

I have been trying to get the python sample from Azure/azure-iot-sdk-python "provision_x509.py" to connect through a group enrollment I created on my azure account, but I get the following error when trying to run the code: