code: def test_nbeats_forecaster_dataloader_distributed(self):
      from bigdl.orca import init_orca_context, stop_orca_context
  
      train_data, _, _ = create_data(loader=True)
      init_orca_context(cores=4, memory="4g")
      forecaster = NBeatsForecaster(
          past_seq_len=24,
          future_seq_len=5,
          stack_types=("generic", "seasonality"),
          loss="mae",
          lr=0.01,
          distributed=True,
      )
      forecaster.fit(train_data, epochs=2)
  
      with pytest.raises(RuntimeError):
          forecaster = NBeatsForecaster(
              past_seq_len=24,
              future_seq_len=5,
              stack_types=("generic", "generic"),
              loss="mae",
              lr=0.01,
              distributed=True,
          )
  
      stop_orca_context()
  
imports: import os
  import tempfile
  import numpy
  from unittest import TestCase
  import pytest
  from bigdl.chronos.utils import LazyImport
  from ..None import op_torch, op_distributed, op_inference, op_automl
label_desc: Use image node_id 16 for calling the TestChronosNBeatsForecaster obj's underlying member method code with example usage: obj.test_nbeats_forecaster_dataloader_distributed() without return types