code: def createNetwork(networkConfig):
    
  
    registerAllResearchRegions()
  
    network = Network()
  
    if networkConfig["networkType"] == "L4L2Column":
      return createL4L2Column(network, networkConfig, "_0")
    elif networkConfig["networkType"] == "MultipleL4L2Columns":
      return createMultipleL4L2Columns(network, networkConfig)
    elif networkConfig["networkType"] == "MultipleL4L2ColumnsWithTopology":
      return createMultipleL4L2ColumnsWithTopology(network, networkConfig)
    elif networkConfig["networkType"] == "L2456Columns":
      return createL2456Columns(network, networkConfig)
    elif networkConfig["networkType"] == "L4L2TMColumn":
      return createL4L2TMColumn(network, networkConfig, "_0")
    elif networkConfig["networkType"] == "CombinedSequenceColumn":
      return createCombinedSequenceColumn(network, networkConfig, "_0")
docs: Create and initialize the specified network instance.
  
    @param networkConfig: (dict) the configuration of this network.
    @return network: (Network) The actual network