Add back inference.inference API

[pquentin]

It’s important for Python and can be a fallback in cases where new providers are missing. Statically-typed clients are expected to exclude this endpoint.

I used https://github.com/elastic/elasticsearch-specification/tree/16c8bd383b6caa644ab64a57e989bb1d75b8b458/specification/inference as a reference, removing the examples that are now spread to provider-specific APIs.

[github-actions]

Following you can find the validation results for the APIs you have changed.

API	Status	Request	Response
inference.chat_completion_unified	⚪	Missing test	Missing test
inference.completion	⚪	Missing test	Missing test
inference.delete	⚪	Missing test	Missing test
inference.get	🟢	1/1	1/1
inference.inference	⚪	Missing test	Missing test
inference.put_alibabacloud	⚪	Missing test	Missing test
inference.put_amazonbedrock	⚪	Missing test	Missing test
inference.put_anthropic	⚪	Missing test	Missing test
inference.put_azureaistudio	⚪	Missing test	Missing test
inference.put_azureopenai	⚪	Missing test	Missing test
inference.put_cohere	⚪	Missing test	Missing test
inference.put_elasticsearch	⚪	Missing test	Missing test
inference.put_elser	⚪	Missing test	Missing test
inference.put_googleaistudio	⚪	Missing test	Missing test
inference.put_googlevertexai	⚪	Missing test	Missing test
inference.put_hugging_face	⚪	Missing test	Missing test
inference.put_jinaai	⚪	Missing test	Missing test
inference.put_mistral	⚪	Missing test	Missing test
inference.put_openai	⚪	Missing test	Missing test
inference.put_voyageai	⚪	Missing test	Missing test
inference.put_watsonx	⚪	Missing test	Missing test
inference.put	⚪	Missing test	Missing test
inference.rerank	⚪	Missing test	Missing test
inference.sparse_embedding	⚪	Missing test	Missing test
inference.stream_completion	⚪	Missing test	Missing test
inference.text_embedding	⚪	Missing test	Missing test
inference.update	⚪	Missing test	Missing test

You can validate these APIs yourself by using the make validate target.

[github-actions]

Following you can find the validation results for the APIs you have changed.

API	Status	Request	Response
inference.chat_completion_unified	⚪	Missing test	Missing test
inference.completion	⚪	Missing test	Missing test
inference.delete	⚪	Missing test	Missing test
inference.get	🟢	1/1	1/1
inference.inference	⚪	Missing test	Missing test
inference.put_alibabacloud	⚪	Missing test	Missing test
inference.put_amazonbedrock	⚪	Missing test	Missing test
inference.put_anthropic	⚪	Missing test	Missing test
inference.put_azureaistudio	⚪	Missing test	Missing test
inference.put_azureopenai	⚪	Missing test	Missing test
inference.put_cohere	⚪	Missing test	Missing test
inference.put_elasticsearch	⚪	Missing test	Missing test
inference.put_elser	⚪	Missing test	Missing test
inference.put_googleaistudio	⚪	Missing test	Missing test
inference.put_googlevertexai	⚪	Missing test	Missing test
inference.put_hugging_face	⚪	Missing test	Missing test
inference.put_jinaai	⚪	Missing test	Missing test
inference.put_mistral	⚪	Missing test	Missing test
inference.put_openai	⚪	Missing test	Missing test
inference.put_voyageai	⚪	Missing test	Missing test
inference.put_watsonx	⚪	Missing test	Missing test
inference.put	⚪	Missing test	Missing test
inference.rerank	⚪	Missing test	Missing test
inference.sparse_embedding	⚪	Missing test	Missing test
inference.stream_completion	⚪	Missing test	Missing test
inference.text_embedding	⚪	Missing test	Missing test
inference.update	⚪	Missing test	Missing test

You can validate these APIs yourself by using the make validate target.

[github-actions]

The backport to 8.18 failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-8.18 8.18
# Navigate to the new working tree
cd .worktrees/backport-8.18
# Create a new branch
git switch --create backport-4256-to-8.18
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 d1072a9314368e66cfb32c04432e52bbfd9a4554
# Push it to GitHub
git push --set-upstream origin backport-4256-to-8.18
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-8.18

Then, create a pull request where the base branch is 8.18 and the compare/head branch is backport-4256-to-8.18.