[azopenaiassistants] Function Tools Support

[pkrauss-prot]

Bug Report

• import path of package in question.
  "github.com/Azure/azure-sdk-for-go/sdk/ai/azopenaiassistants"

• SDK version
  "v0.1.0"

• output of go version
  "go version go1.21.8 linux/amd64"

• What happened?
  azopenaiassistants is obviously very new and being at a release v0 has no guarantees. However I noticed that the current implementation does not use the existing interface for RequiredActionClassification. Current implementation is using a concrete implementation that only returns Type and not the SubmitToolOutputsAction with both Type and SubmitToolOutputs.

• What did you expect or want to happen?
  I was hoping that the interface was used so that i could return the SubmitToolOutputs to process function calls.

• How can we reproduce it?

// this should be waiting in status "requires_action"
lastGetRunResp, err = client.GetRun(context.Background(), "a thread id", "a run id", nil)
// is concrete so you cannot swap it out for `SubmitToolOutputsAction`
lastGetRunResp.RequiredAction

• Anything we should know about your environment.
  Nope pretty standard.

[richardpark-msft]

Looking at this. It looks like something didn't quite generate properly there since, as you noted, the RequiredAction model did get generated.