You can either use the name or identifier of a parameter in the configuration file.
For example, if you want to add 30 HP to the augment Thievery, you can do it via identifiers like this:
{17, 0, 30}
or via names like this:
{augments.thievery, types.hp, 30}
or this:
{augments["thievery"], types["hp"], 30}
All names are case insensitive, so you can even use augments.ThIeVeRy if you want.
Names give a better overview of the configuration file while identifiers keep it shorter and a bit more neatly formatted. You can choose whichever style you prefer more.
Notes
For a list of all names, you can view the {game}/x64/scripts/config/TheInsurgentsStatLores/helpers.lua file.