How can I install Test ToolKit on an existing Azure Container?

KarenS

I have created a Business Central conatiner in Azure using

az container create `
--resource-group 'RG-Container' `
--name 'democontainer’ `
--image mcr.microsoft.com/businesscentral/sandbox:13.1.25940.26323 `
--dns-name-label 'democontainer’ `
--port 80
Once installed, how can i now add / install the testtoolkit ? I dont see there being a -testtoolkit variable ?
I have tried to add the parameter --includeTestToolkit, but this gives an error:

: az: error: unrecognized arguments: --includeTestToolkit At line:11 char:1 + az container create -g $resourceGroup -n $containerName --image $imag ...

How can i install the testtoolkit with the az container create or any other cmd in Azure ?

thanks