How to use Retool to fill in a FireStore DB with a CSV?

I'm following this tutorial but it seems out of date, the "file picker" component is missing and also I can't seem to find the "temporary state" module on the left hand side to verify if my component has parsed the file. Any help would be appreciated, I am trying to load a .CSV file into my Google Firebase DB.

@DennisC

Hey there :wave: Thanks for reaching out! You can use the File Input component, File Dropzone component, or the File Button here. To look at your temporary state, you can click this left panel icon to extend the panel out, and it should be in the top left corner :slightly_smiling_face: