Question about Creating Network in Domains/SupplyChain.py

[YanyuECL]

I want to build the supply chain network of Anna Nagurney's work:
A supply chain network equilibrium model.pdf
However, I can't identify the coefficients you have created in Domains/SupplyChain.py/CreateNetworkExample.
Such as I=2, Nm=2(manufacture?) , Nd = 2, Nr = 1 and those links.
Besides, have you ever resolved the supply chain VI problems with the Modified projection method?
Thanks a lot!