@classmethod
def build_decoder(cls, cfg: Wav2Vec2Seq2SeqConfig, tgt_dict, embed_tokens):
    return TransformerDecoder(cfg, tgt_dict, embed_tokens)
@classmethod
def build_decoder(cls, cfg: Wav2Vec2Seq2SeqConfig, tgt_dict, embed_tokens):
    return TransformerDecoder(cfg, tgt_dict, embed_tokens)