code: def cluster_lsun():
      template_clustering(FCPS_SAMPLES.SAMPLE_LSUN, 0.5, 3)
  
imports: import random
  from pyclustering.cluster import cluster_visualizer
  from pyclustering.cluster.optics import optics, ordering_analyser, ordering_visualizer
  from pyclustering.utils import read_sample, 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_lsun() without return types