code: def cluster_sample4():
      template_clustering(
          [4, 15, 30, 40, 50], SIMPLE_SAMPLES.SAMPLE_SIMPLE4
      )
  
imports: from pyclustering.samples.definitions import SIMPLE_SAMPLES, FCPS_SAMPLES
  from pyclustering.cluster import cluster_visualizer
  from pyclustering.cluster.kmedoids import kmedoids
  from pyclustering.utils import read_sample, calculate_distance_matrix
  from pyclustering.utils import timedcall, distance_metric, type_metric
label_desc: Use image node_id 5 for calling a global function with example usage: cluster_sample4() without return types