src/transformers/models/wav2vec2/modeling_tf_wav2vec2.py/TFWav2Vec2ForCTC/freeze_feature_encoder
class TFWav2Vec2ForCTC:    def freeze_feature_encoder(self):
        """
        Calling this function will disable the gradient computation for the feature encoder so that its parameter will
        not be updated during training.
        """
        self.wav2vec2.feature_extractor.trainable = False