Use a "sub"module of the module GetMultibody

Hello,

Thanks to the function Exports, it is possible to see the differents functions and modules which are in a module.

For example, I find in the module GetMultibody a module called GetLGM which permits to conduct some linear graph analysis. I'm interested by this module.

However, to my knowledge, I didn't see any help on this module.

How can I do so as to understand the inputs to give to the functions of this module in order to use the functions of this module ? In other words, how it is possible to use functions from a module when you don't have any help at your disposal ? 

Thanks a lot for your help.