The types are now public on NPM, you can use them:
# With npm
> npm i --save-dev @ragempcommunity/types-server
> npm i --save-dev @ragempcommunity/types-client
> npm i --save-dev @ragempcommunity/types-cef
# With yarn
> yarn add -D @ragempcommunity/types-server
> yarn add -D @ragempcommunity/types-client
> yarn add -D @ragempcommunity/types-cef
# With pnpm
> pnpm add -D @ragempcommunity/types-server
> pnpm add -D @ragempcommunity/types-client
> pnpm add -D @ragempcommunity/types-cef
For more details, please see: https://github.com/ragempcommunity/ragemp-types