PublishedPipeline does not contain DateUpdated information

If one wishes to retrieve the latest published pipeline with a given name how can this be done? When publishing, one could set the current date-time in the Version attribute, but surely this information is already recorded?

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* ID: 84ed82cc-121d-0e5f-5b83-e2532463422b
* Version Independent ID: 41ebf8ab-64cd-2662-c87b-0e781ea3963e
* Content: [azureml.pipeline.core.graph.PublishedPipeline class - Azure Machine Learning Python](https://docs.microsoft.com/en-us/python/api/azureml-pipeline-core/azureml.pipeline.core.graph.publishedpipeline?view=azure-ml-py)
* Content Source: [AzureML-Docset/stable/docs-ref-autogen/azureml-pipeline-core/azureml.pipeline.core.graph.PublishedPipeline.yml](https://github.com/MicrosoftDocs/MachineLearning-Python-pr/blob/live/AzureML-Docset/stable/docs-ref-autogen/azureml-pipeline-core/azureml.pipeline.core.graph.PublishedPipeline.yml)
* Service: **machine-learning**
* Sub-service: **core**
* GitHub Login: @DebFro
* Microsoft Alias: **debfro**