src/transformers/models/speecht5/modeling_speecht5.py/SpeechT5SpeechDecoderPostnet/postnet
class SpeechT5SpeechDecoderPostnet:    def postnet(self, hidden_states: torch.Tensor):
        layer_output = hidden_states.transpose(1, 2)
        for layer in self.layers:
            layer_output = layer(layer_output)
        return hidden_states + layer_output.transpose(1, 2)