What is the status of NotebookRunnerStep?

[This question came up on SO](https://stackoverflow.com/questions/63866007/trigger-jupyter-notebook-in-azure-ml-workspace-from-adf/63878663#63878663​​​​​​​), and it made me think of `NotebookRunnerStep`. the SDK docs make no mention of `NotebookRunnerStep` but there is a demo notebook in this repo. Is that because the feature is still in public preview? If so, what's the roadmap to GA or inclusion in the main SDK (at least the docs?).

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#### Document Details

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* ID: 2cf9e3d1-b313-c997-eae8-6cab3bd2014a
* Version Independent ID: 0ef18191-46b9-6da0-0951-627a442c7d5e
* Content: [azureml.pipeline.steps package - Azure Machine Learning Python](https://docs.microsoft.com/en-us/python/api/azureml-pipeline-steps/azureml.pipeline.steps?view=azure-ml-py)
* Content Source: [AzureML-Docset/stable/docs-ref-autogen/azureml-pipeline-steps/azureml.pipeline.steps.yml](https://github.com/MicrosoftDocs/MachineLearning-Python-pr/blob/live/AzureML-Docset/stable/docs-ref-autogen/azureml-pipeline-steps/azureml.pipeline.steps.yml)
* Service: **machine-learning**
* Sub-service: **core**
* GitHub Login: @debfro
* Microsoft Alias: **debfro**

Comece pelo notebook de demonstração do NotebookRunnerStep e pela página de referência de azureml.pipeline.steps vinculada na issue, incluindo AzureML-Docset/stable/docs-ref-autogen/azureml.pipeline.steps.yml. Compare a superfície documentada do SDK com a demonstração e com a pergunta vinculada do Stack Overflow; considera-se concluído quando o status de preview do recurso, o roadmap e a decisão sobre sua documentação ou inclusão estiverem claramente estabelecidos.

Escrita pelo modelo de indexação a partir do texto da issue.