code: def test_s2s_forecaster_runtime_error(self):
      train_data, val_data, test_data = create_data()
      forecaster = Seq2SeqForecaster(
          past_seq_len=24,
          future_seq_len=5,
          input_feature_num=1,
          output_feature_num=1,
          loss="mae",
          lr=0.01,
      )
      with pytest.raises(RuntimeError):
          with tempfile.TemporaryDirectory() as tmp_dir_name:
              ckpt_name = os.path.join(tmp_dir_name, "ckpt")
              forecaster.save(ckpt_name)
      with pytest.raises(RuntimeError):
          forecaster.predict(test_data[0], acceleration=False)
      with pytest.raises(RuntimeError):
          forecaster.evaluate(test_data, acceleration=False)
  
imports: import numpy
  import tempfile
  import os
  from bigdl.chronos.utils import LazyImport
  from unittest import TestCase
  import pytest
  from ..None import op_torch, op_distributed, op_inference, op_automl
label_desc: Use image node_id 10 for calling the TestChronosModelSeq2SeqForecaster obj's underlying member method code with example usage: obj.test_s2s_forecaster_runtime_error() without return types