code: def testClusterAllocationSampleSimple3ByCore(self):
      CureTestTemplates.template_cluster_allocation(
          SIMPLE_SAMPLES.SAMPLE_SIMPLE3,
          [10, 10, 10, 30],
          4,
          5,
          0.5,
          True,
      )
  
imports: import unittest
  import matplotlib
  from pyclustering.samples.definitions import SIMPLE_SAMPLES, FCPS_SAMPLES
  from pyclustering.cluster.cure import cure
  from pyclustering.cluster.tests.cure_templates import CureTestTemplates
  from pyclustering.core.tests import remove_library
label_desc: Use image node_id 3 for calling the CureIntegrationTest obj's underlying member method code with example usage: obj.testClusterAllocationSampleSimple3ByCore() without return types