code: def setUp(self):
      from bigdl.chronos.forecaster.tf.seq2seq_forecaster import (
          Seq2SeqForecaster,
      )
  
      self.forecaster = Seq2SeqForecaster(
          past_seq_len=10,
          future_seq_len=2,
          input_feature_num=10,
          output_feature_num=2,
      )
  
imports: import pytest
  import tempfile
  import os
  from unittest import TestCase
  import numpy
  from bigdl.chronos.utils import LazyImport
  from test.bigdl.chronos import op_tf2, op_distributed
label_desc: Use image node_id 1 for calling the TestSeq2SeqForecaster obj's underlying member method code with example usage: obj.setUp() without return types