code: def templateCreateNetwork(self, network_size):
      oscillatory_network = fsync_network(network_size)
      assert len(oscillatory_network) == network_size
  
imports: import unittest
  import matplotlib
  from pyclustering.nnet import conn_type, conn_represent
  from pyclustering.nnet.fsync import fsync_network, fsync_visualizer
label_desc: Use image node_id 1 for calling the FsyncUnitTest obj's underlying member method code with example usage: obj.templateCreateNetwork(network_size) without return types