code: def cluster_hepta():
      template_clustering(7, FCPS_SAMPLES.SAMPLE_HEPTA, 2, 2)
  
imports: from pyclustering.cluster.clarans import clarans
  from pyclustering.utils import read_sample
  from pyclustering.utils import draw_clusters
  from pyclustering.utils import timedcall
  from pyclustering.samples.definitions import SIMPLE_SAMPLES, FCPS_SAMPLES
label_desc: Use image node_id 16 for calling a global function with example usage: cluster_hepta() without return types