Snippet is an image

The snippet for creating cluster monitoring is an image, which makes it cumbersome to copy

https://github.com/Azure/AzureDatabricksBestPractices/blob/master/Python%20Snippet.PNG

Start by inspecting Python Snippet.PNG and the surrounding cluster-monitoring guidance in the repository. Replace the image-based snippet with selectable text while preserving its content, and verify that readers can copy it directly from the documentation.

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