What recommended format of input parameters/options of a large hydrological model compiled as a Julia Package?

[JosephPollacco]

As a follow up I posted the following post:
How to convert struct 2 TOML?

How to convert TOML file into a Structure and vice versa?

Hi I have a large SoilWater-ToolBox model and I have got all the input , Parameters, as a mutable struct. In order to create a package I will need to read the parameters outside the model as recommended in previous post as a TOML. So the question is how to convert the structure into TOML? Then how to read TOML file into a structure? I will be delighted if one can provide me guidance how to perform this task by using the proposed simple structure: mutable struct OPTION transpiration …

Many thanks for any help you may provide