How to get Typescript support for files imported using a local package.json

I'm adding package.json files in the main folders of my app to be able to import files easily, for example in constants folder there is a package.json file with {"name":"@constants"} and to import from the folder I use:

import file from '@constants'

This is very convenient, but when using Typescript I don't get error checking, autocomplete... for files imported these way.