Question about the storage of policy functions in the solution structure

[Zhanwenqing]

Dear Prof. Maih,
I am trying to understand how the policy functions are stored after solving the model.

After calling

m = solve(m);

I noticed that the function print_solution displays the solution. From the code, it seems that the policy function coefficients are retrieved through something like

sol.(stud)(ids,:,ireg)

Could you please clarify whether the policy functions are indeed stored in sol.(stud)(ids,:,ireg) and how the dimensions of this object correspond to the endogenous variables, state variables, and regimes?

In particular, I would like to understand:

Whether sol.(stud)(ids,:,ireg) contains the reduced-form policy function matrices.

Whether there is a recommended way to programmatically extract the policy function matrices for further analysis.

Thank you very much for your help.

Zhan