code: def testClusteringSampleSimple4DistanceMatrix(self):
      DbscanTestTemplates.templateClusteringDistanceMatrix(
          SIMPLE_SAMPLES.SAMPLE_SIMPLE4,
          0.7,
          3,
          [15, 15, 15, 15, 15],
          False,
      )
      DbscanTestTemplates.templateClusteringDistanceMatrix(
          SIMPLE_SAMPLES.SAMPLE_SIMPLE4, 2, 3, [75], False
      )
  
imports: import unittest
  import matplotlib
  from pyclustering.cluster.tests.dbscan_templates import DbscanTestTemplates
  from pyclustering.cluster.dbscan import dbscan
  from pyclustering.samples.definitions import SIMPLE_SAMPLES, SIMPLE_ANSWERS
  from pyclustering.samples.definitions import FCPS_SAMPLES
label_desc: Use image node_id 11 for calling the DbscsanUnitTest obj's underlying member method code with example usage: obj.testClusteringSampleSimple4DistanceMatrix() without return types