[GSoC] Provide a PyTorch MNIST Example for Push-based Metrics Collection

[Electronic-Waste]

What this PR does / why we need it:

Provide a Pytorch MNIST example for push-based metrics collection.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

Checklist:

• Docs included if any changes are user facing

[google-oss-prow]

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[tenzen-y]

@Electronic-Waste Could we implement CI powered by papermill first in a separate PR?

[Electronic-Waste]

It seems that #2417 mentioned it and has already been taken by someone. I'll ask the assignee about the progess. And if he doesn't have time, I would be glad to take it :)

Please let me know your thoughts. cc @tenzen-y @andreyvelich

[tenzen-y]

It seems that #2417 mentioned it and has already been taken by someone. I'll ask the assignee about the progess. And if he doesn't have time, I would be glad to take it :)

Please let me know your thoughts. cc @tenzen-y @andreyvelich

As Andrey mentioned in the issue, we are working on it at the traininig-operator, first.
So, let us come back here after the papermill implementation is completed in the training operator.

[Electronic-Waste]

Yeah, I see! I'm looking forward to enhance my understanding of Training-Operator through this issue :)