code: def cluster_sample8():
      template_clustering(4, SIMPLE_SAMPLES.SAMPLE_SIMPLE8, 15, 5)
  
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 9 for calling a global function with example usage: cluster_sample8() without return types