Accessing module codes - Battery module - Degradation models

Hello, 

Im developing customized routines to simulate the performance of different batteries for a set of particular applications for which Im using Jupyter Notebook / Python and the SSC modules and data that are available in the SDK tool.

I have reached the point where I would like to model some things in a different way as the module does. For example I would like to model degradation in a more detailed way to the one that the module allows, in particular I would like to express the cycling degradation as a function of more variables than the DoD and cycles elapsed only. For that I've reached the conclusion that I would need to see what is inside the module "battery" since it's not a matter or simply updating the columns of data that define the available cycling degradation model but actually defining a new model where the capacity fade is a function of other additional variables. 

• Do you agree with my conclusion of necessarily working at module level to include a new degradation model to solve this?
• Is there a way I can access the modules or are they closed inaccessible black boxes?

Thanks in advance. 
Best regards