code: def cluster_sample7():
      template_clustering(1.0, 3, SIMPLE_SAMPLES.SAMPLE_SIMPLE7)
  
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 7 for calling a global function with example usage: cluster_sample7() without return types