docs: def decode(self, encoded):
          """ Decodes ``encoded`` label.
  
          Args:
              encoded (torch.Tensor): Encoded label.
  
          Returns:
              object: Label decoded from ``encoded``.
          """
          encoded = super().decode(encoded)
  
          if encoded.numel() > 1:
              raise ValueError(
                  '``decode`` decodes one label at a time, use ``batch_decode`` instead.')
  
          return self.itos[encoded.squeeze().item()]