==================================== ERRORS ====================================
___________ ERROR collecting tests/experimental/test_bco_trainer.py ____________
ImportError while importing test module '/__w/trl/trl/tests/experimental/test_bco_trainer.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/__w/_tool/Python/3.12.12/x64/lib/python3.12/importlib/__init__.py:90: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
tests/experimental/test_bco_trainer.py:27: in <module>
    from ..testing_utils import TrlTestCase, require_no_wandb, require_peft, require_sklearn
tests/testing_utils.py:34: in <module>
    from trl.experimental.judges import BaseBinaryJudge, BasePairwiseJudge
trl/experimental/judges/__init__.py:15: in <module>
    from .judges import (
trl/experimental/judges/judges.py:28: in <module>
    import llm_blender
.venv/lib/python3.12/site-packages/llm_blender/__init__.py:1: in <module>
    from llm_blender.blender.blender import Blender
.venv/lib/python3.12/site-packages/llm_blender/blender/blender.py:11: in <module>
    from .blender_utils import (
.venv/lib/python3.12/site-packages/llm_blender/blender/blender_utils.py:22: in <module>
    from transformers.utils.hub import TRANSFORMERS_CACHE
E   ImportError: cannot import name 'TRANSFORMERS_CACHE' from 'transformers.utils.hub' (/__w/trl/trl/.venv/lib/python3.12/site-packages/transformers/utils/hub.py)

...

======================= 12 warnings, 34 errors in 43.39s =======================