code: def testCoreInterfaceIntInputData():
      result_testing = False
  
      for _ in range(10):
          hsyncnet_instance = hsyncnet(
              [[1], [2], [3], [20], [21], [22]],
              2,
              initial_type.EQUIPARTITION,
              ccore=True,
          )
          analyser = hsyncnet_instance.process()
  
          if len(analyser.allocate_clusters(0.1)) == 2:
              result_testing = True
              break
  
      assert result_testing
  
imports: from pyclustering.nnet import initial_type, solve_type
  from pyclustering.utils import read_sample
  from pyclustering.cluster.hsyncnet import hsyncnet
label_desc: Use image node_id 3 for calling the HsyncnetTestTemplates obj's underlying member method code with example usage: obj.testCoreInterfaceIntInputData() without return types