code: def testFastSolutionByCore(self):
      SyncTestTemplates.templateSimulateTest(
          10, 1, solve_type.FAST, ccore_flag=True
      )
  
imports: import unittest
  import matplotlib
  from pyclustering.nnet.tests.sync_templates import SyncTestTemplates
  from pyclustering.nnet import conn_type, solve_type
  from pyclustering.nnet.sync import sync_network
  from pyclustering.core.tests import remove_library
label_desc: Use image node_id 4 for calling the SyncIntegrationTest obj's underlying member method code with example usage: obj.testFastSolutionByCore() without return types