code: def test_mcs_error(self):
      mcs = MCS(
          self.losses_df, 0.05, reps=100, block_size=10, method="r"
      )
      with pytest.raises(RuntimeError):
          mcs.included
  
imports: from typing import NamedTuple
  import numpy
  from numpy import linspace
  from numpy.random import RandomState
  from numpy.testing import assert_allclose, assert_equal
  import pandas
  from pandas.testing import assert_frame_equal, assert_series_equal
  import pytest
  import scipy.stats
  from arch.bootstrap import CircularBlockBootstrap, MovingBlockBootstrap, StationaryBootstrap
  from arch.bootstrap.multiple_comparison import MCS, SPA, StepM
label_desc: Use image node_id 5 for calling the TestMCS obj's underlying member method code with example usage: obj.test_mcs_error() without return types