Credit deduction for function calls

Credit deduction for function calls

Good morning,

As I understand, there is a limit to the number of function calls you are allowed to make in a Deluge application.
So for every function call, there will be a credit deducted.

Does this only apply to calling a custom function, like this: thisapp.customFunction() ?
Or does this also apply to all the basic deluge functions, like for example: get(), put(), ifnull(), etc. ?

Kind regards,
Nando