code: def test_emcee_ntemps(self):
      # check for DeprecationWarning when using ntemps > 1
      if not HAS_EMCEE:
          return True
  
      with pytest.raises(DeprecationWarning):
          _ = self.mini.emcee(params=self.fit_params, ntemps=5)
  
imports: import sys
  import unittest
  import numpy
  from numpy import pi
  from numpy.testing import assert_allclose, assert_almost_equal, assert_equal
  import pytest
  from scipy.optimize import rosen_der
  from uncertainties import ufloat
  from lmfit import Minimizer, Parameters, minimize
  from lmfit.lineshapes import gaussian
  from lmfit.minimizer import HAS_EMCEE, SCALAR_METHODS, MinimizerResult, coerce_float64
  from lmfit.models import SineModel
label_desc: Use image node_id 19 for calling the CommonMinimizerTest obj's underlying member method code with example usage: obj.test_emcee_ntemps() and returns: True