hidden <input> htmltags created in addComponent()

[SteinerPascal]

I was wondering if these input types defined here have any usage(the one in the end with a- b- c-): https://github.com/sparna-git/Sparnatural/blob/3202bc4b8e53f15b494c9d0f238886fa4d5cb2fc/src/sparnatural.js#L822

It doesn't seem like it?