code: def test_clustering_sample_02_kmax_2(self):
      gmeans_test_template().clustering(
          SIMPLE_SAMPLES.SAMPLE_SIMPLE2, [8, 15], 1, True, k_max=2
      )
  
imports: import unittest
  import matplotlib
  from pyclustering.cluster.tests.gmeans_templates import gmeans_test_template
  from pyclustering.samples.definitions import SIMPLE_SAMPLES, SIMPLE_ANSWERS, FCPS_SAMPLES
label_desc: Use image node_id 8 for calling the gmeans_integration_test obj's underlying member method code with example usage: obj.test_clustering_sample_02_kmax_2() without return types