Meaning of しとくとして in this sentence


> とりあえずさっきの子にLINEしとくとして…
>
> 軽く飯食べって帰ろ…

I take he's saying he'll contact the girl from before with LINE, but what is
しとくとして?

しておく+ として? How does it work?




I think it is something like this:

> しとくとして -> しておく + として -> しておく + とする (in て form)

So it means something like: I will make sure to put things in place (in LINE)
so that (I will contact the girl from before). Maybe by saving the contact in
a particular way or something. Dunno about LINE.

See [this one](https://japanese.stackexchange.com/questions/34137/what-does-
verb%E3%81%A8%E3%81%99%E3%82%8B-mean) for the meaning of とする.

