src/transformers/models/wav2vec2_conformer/modeling_wav2vec2_conformer.py/Wav2Vec2ConformerPreTrainedModel/_set_gradient_checkpointing
class Wav2Vec2ConformerPreTrainedModel:    def _set_gradient_checkpointing(self, module, value=False):
        if isinstance(module, (Wav2Vec2ConformerEncoder, Wav2Vec2ConformerFeatureEncoder)):
            module.gradient_checkpointing = value