Node Management
See the documentation for:
IdealFlow.Network.IFN.add_node()
IdealFlow.Network.IFN.delete_node()
IdealFlow.Network.IFN.get_nodes()
IdealFlow.Network.IFN.total_nodes()
IdealFlow.Network.IFN.nodes_flow()
IdealFlow.Network.IFN.in_degree()
IdealFlow.Network.IFN.out_degree()
IdealFlow.Network.IFN.signature_to_num_nodes()