code: def _forward(self, x, y):
      self._input_check(x, y)
      return self.model(x, y)
  
file_path: analytics-zoo/pyzoo/zoo/chronos/model/Seq2Seq_pytorch.py
imports: import torch
  import torch.nn
  from zoo.orca.automl.model.base_pytorch_model import PytorchBaseModel, PYTORCH_REGRESSION_LOSS_MAP
  import numpy
label_desc: Use image node_id 3 for calling the Seq2SeqPytorch obj's underlying member method code with example usage: obj._forward(x, y) and returns: self