code: def test_clustering_hepta_kmax_01(self):
      gmeans_test_template().clustering(
          FCPS_SAMPLES.SAMPLE_HEPTA, 1, 1, False, k_max=1
      )
  
imports: import unittest
  import matplotlib
  from pyclustering.cluster.tests.gmeans_templates import gmeans_test_template
  from pyclustering.cluster.gmeans import gmeans
  from pyclustering.utils import read_sample, distance_metric, type_metric
  from pyclustering.samples.definitions import SIMPLE_SAMPLES, FCPS_SAMPLES, SIMPLE_ANSWERS
label_desc: Use image node_id 22 for calling the gmeans_unit_test obj's underlying member method code with example usage: obj.test_clustering_hepta_kmax_01() without return types