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# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
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#     http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
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import warnings
from dataclasses import dataclass

from ..import_utils import suppress_experimental_warning


with suppress_experimental_warning():
    from ..experimental.kto import KTOTrainer as _KTOTrainer


@dataclass
class KTOTrainer(_KTOTrainer):
    def __init__(self, *args, **kwargs):
        warnings.warn(
            "The `KTOTrainer` is now located in `trl.experimental`. Please update your imports to "
            "`from trl.experimental.kto import KTOTrainer`. For more information, see "
            "https://github.com/huggingface/trl/issues/4223. Promoting KTO to the stable API is a high-priority task. "
            "Until then, this current path (`from trl import KTOTrainer`) will remain, but API changes may occur.",
            FutureWarning,
            stacklevel=2,
        )
        super().__init__(*args, **kwargs)