Experimental feature to use tokens not in <s\d> format

[NorilskMajor]

Create a new flag that will incorporate provided tokens abstraction into model tokens to prevent multiple LoRAs clashing.

What does this PR do?

Creates an experimental flag that will rename the default to <TOK_0><TOK_1>.

Fixes #7298

Before submitting

• [ ] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
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• [ ] Did you write any new necessary tests?

[NorilskMajor]

@sayakpaul

[linoytsaban]

@NorilskMajor thanks a lot for the PR! I think it'll be great to have better support for multiple loras as you described in https://github.com/huggingface/diffusers/issues/7298

[sayakpaul]

@linoytsaban feel free to give the PR a review and let us know!

[HuggingFaceDocBuilderDev]

The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

[sayakpaul]

@linoytsaban a gentle ping.

[linoytsaban]

Hey @NorilskMajor! it looks like it's still failing the quality tests due to 2 lines that need to be reformatted, could you run make fixup?

[NorilskMajor]

Hey @linoytsaban, I ran the make quality however the affected 2 files are not listed. Running make fixup also doesn't affect these files. I'm not entirely sure why the presubmits fail this way.

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. If you think this still needs to be addressed please comment on this thread.

Please note that issues that do not follow the contributing guidelines are likely to be ignored.

[sayakpaul]

What's pending with this PR? Cc: @linoytsaban

[linoytsaban]

@sayakpaul only the quality checks I believe, not sure why they're failing

[sayakpaul]

Possible for you to clone the PR branch and commit directly?

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. If you think this still needs to be addressed please comment on this thread.

Please note that issues that do not follow the contributing guidelines are likely to be ignored.