[TA] Added SingleCategoryClassify functionality

[AhmedLeithy]

This PR contains the implementation of the Single Category Classify API interface as explained in #24061. Renames post the meeting with the architecture board have been taken into consideration in this PR.

The two known issues are:

• "projectName" and "deploymentName" are expected to be "project-name" and "deployment-name" by the PPE. This change can also be temporarily made in CustomSingleClassificationTaskParameters.Serialization.cs

• the PPE does not currently support old actions, and thus session records for them cannot yet be rerecorded.

No long-term solution can currently be done about the previous two issues, but they can be solved in another PR.

[maririos]

"projectName" and "deploymentName" are expected to be "project-name" and "deployment-name" by the PPE. This change can also be temporarily made in CustomSingleClassificationTaskParameters.Serialization.cs

You can't modify the **.Serialization classes as every time codegen is run, your changes will be overwritten.
I don't have much information on the specific issue, so a couple of questions (@mssfang , @deyaaeldeen):

• Has this been reported to the service team?
• Is there an ETA on when the fix from the service team will happen?

If you want to "trick" the SDK so that it reflects what the current behavior of the service is, you could write a transform and add it to the autorest.md file that will rename the parameter from projectName to project-name. The transforms are applied to the swagger before all the code is generated, so every time you run codegen, it will take into account the transform. If you want to do this, let me know and I can help write the transform fi you want. I have done tons of transforms lately :P

When the service fixes the bug, you can undo the transform.

[deyaaeldeen]

I agree with what @maririos said. Fortunately, the swagger got updated today and this issue has been fixed so you just need to re-generate with the latest version.

[maririos]

Comments so far from .NET implementation perspective. Didn't look at test or sample implementation.

@deyaaeldeen and @mssfang could you review from the design and terminology perspective?

[mssfang]

is singleClassificationActionResults? a better name? I thought classificationResultsCollection is the document result collections.

[AhmedLeithy]

good point. So you think I should replace classificationResultsCollection with singleClassificationActionResults. Correct?

[maririos]

PR LGTM :) Just need to re-record some failing tests and make sure CI passes

[maririos]

Talked offline where Ahmed reminded me that not all endpoints are deployed so test failing is expected