code: def test_kmeans_large_thres(self):
      # Regression test for gh-1774
      x = np.array([1, 2, 3, 4, 10], dtype=float)
      res = kmeans(x, 1, thresh=1e16)
      assert_allclose(res[0], np.array([4.0]))
      assert_allclose(res[1], 2.3999999999999999)
  
imports: import warnings
  import sys
  import numpy
  from numpy.testing import assert_array_equal, assert_array_almost_equal, assert_allclose, assert_equal, assert_, suppress_warnings
  import pytest
  from pytest import raises
  from scipy.cluster.vq import kmeans, kmeans2, py_vq, vq, whiten, ClusterError, _krandinit
  from scipy.cluster import _vq
  from scipy.sparse.sputils import matrix
label_desc: Use image node_id 12 for calling the TestKMean obj's underlying member method code with example usage: obj.test_kmeans_large_thres() without return types