code: def cluster_hepta():
      template_clustering(1, 3, FCPS_SAMPLES.SAMPLE_HEPTA)
  
imports: import random
  from pyclustering.cluster import cluster_visualizer
  from pyclustering.cluster.dbscan import dbscan
  from pyclustering.utils import read_sample
  from pyclustering.utils import timedcall
  from pyclustering.samples.definitions import SIMPLE_SAMPLES, FCPS_SAMPLES
label_desc: Use image node_id 15 for calling a global function with example usage: cluster_hepta() without return types