code: def testDynamicLengthListBidirConnectionByCore(self):
      PcnnTestTemplates.templateDynamicLength(
          10, 20, conn_type.LIST_BIDIR, None, [0] * 10, True
      )
  
imports: import unittest
  from pyclustering.nnet.tests.pcnn_templates import PcnnTestTemplates
  from pyclustering.nnet import conn_type, conn_represent
  from pyclustering.core.tests import remove_library
label_desc: Use image node_id 4 for calling the PcnnIntegrationTest obj's underlying member method code with example usage: obj.testDynamicLengthListBidirConnectionByCore() without return types