Analysis the breaking impact for warp-non-model-return feature and mitigate if necessary

[MaryGao]

Analysis the breaking impact for non-model return feature and mitigate if necessary #3805

[qiaozha]

This is trying to analyze existing service to see if there's any mitigation that are necessary.

[v-jiaodi]

After the analysis, two services were impacted. I’ve already opened a PR to mitigate it. pr link: Azure/azure-rest-api-specs#41359

1. @azure/batch return non-model type boolean and Uint8Array
2. @azure/ai-content-understanding return non-model type Uint8Array