URGENT: the dreaded "ModuleNotFound: Azure" error is being thrown when executing the from-import lines of code !!!

• bug report -> please search issues before submitting
• feature request
• documentation issue or request
• regression (a behavior that used to work and stopped in a new release)

### Minimal steps to reproduce
> 
START VSCode;
INSTALL Python extensions (which will INCLUDE everything to run Jupyter Notebooks in a project) in VSCode;
DEFINE a python virtual environment for your project;
INSTALL Azure CognitiveServices  "custom vision" package into that virtual environment; 
(pip install azure-cognitiveservices-vision-customvision)
COPY the following line into a notebook cell: 
       from azure.cognitiveservices.vision.customvision.training import CustomVisionTrainingClient
EXECUTE the cell 

=> RESULT: VSCode will throw the following exception: 
ModuleNotFoundError: No module named 'azure'

### Any log messages given by the failure
>ModuleNotFoundError: No module named 'azure'

### Expected/desired behavior
> the desired class is SUCCESSFULLY imported into the notebook

### OS and Version?
> Win10pro (all auto-patching CURRENT)

### Mention any other details that might be useful
> COPIED & PASTED code VERBATUM directly from the following "QuickStart" web page at docs.microsoft.com: 
https://docs.microsoft.com/en-us/azure/cognitive-services/custom-vision-service/quickstarts/image-classification?tabs=visual-studio&pivots=programming-language-python

> ---------------------------------------------------------------
> Thanks! We'll be in touch soon.

使用指定的 Python 虚拟环境和 azure-cognitiveservices-vision-customvision 包，在 VSCode notebook 中重现该导入。检查 notebook 中选择的环境是否与安装该包的环境一致；当 CustomVisionTrainingClient 的导入成功且没有 ModuleNotFoundError 时即表示完成。未指定任何仓库文件或测试的名称。