src/transformers/models/perceiver/modeling_perceiver.py/PerceiverEmbeddingDecoder/__init__
class PerceiverEmbeddingDecoder:    def __init__(self, config: PerceiverConfig) -> None:
        super().__init__()
        self.config = config
        self.vocab_size = config.vocab_size
        self.bias = nn.Parameter(torch.zeros(self.vocab_size))