code: def __getitem__(self, item):
      text = str(self.data[item][self.config.text_column])
      target = str(self.data[item][self.config.target_column])
  
      model_inputs = self.tokenizer(
          text, max_length=self.max_len_input, truncation=True
      )
  
      labels = self.tokenizer(
          text_target=target,
          max_length=self.max_len_target,
          truncation=True,
      )
  
      model_inputs["labels"] = labels["input_ids"]
      return model_inputs
  
label_desc: Use image node_id 3 for calling the Seq2SeqDataset obj's underlying member method code with example usage: obj.__getitem__(item) and returns: model_inputs