code: def test_bad_values():
      # GH 654
      qlike = np.array([[0.38443391, 0.39939706, 0.2619653]])
      q = MCS(qlike, size=0.05, method="max")
      with pytest.warns(
          RuntimeWarning, match="During computation of a step"
      ):
          q.compute()
  
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 11 for calling a global function with example usage: test_bad_values() without return types