code: def _get_required_parameters(self):
      return {
          "input_feature_num",
          "future_seq_len",
          "output_feature_num",
      }
  
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 4 for calling the Seq2SeqPytorch obj's underlying member method code with example usage: obj._get_required_parameters() and returns: unknown