[`DocString`] Support a revision in the docstring `add_code_sample_docstrings` to facilitate integrations (#27645)
* initial commit
* dummy changes
* style
* Update src/transformers/utils/doc.py
Co-authored-by: Alex McKinney <44398246+vvvm23@users.noreply.github.com>
* nits
* nit use ` if re.match(r'^refs/pr/\d*', revision):`
* restrict
* nit
* test the doc vuilder
* wow
* oke the order was wrong
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Co-authored-by: Alex McKinney <44398246+vvvm23@users.noreply.github.com>