vitest/config doesn't work with typescript

[pikax]

Describe the bug

Following the new guide from #799 and https://vitest.dev/guide/#configuring-vitest

It doesn't work:

import { defineConfig } from 'vitest/config' // error here

export default defineConfig({
  test: {
    // ...
  },

Reproduction

pnpm create vite // vanilla

cd project
pnpm i

pnpm add vitest -D
// create vitest.config.ts

NOTE node.d.ts is still present on the provided on the root folder, but not the config.d.ts

System Info

System:
    OS: Windows 10 10.0.22000
    CPU: (24) x64 AMD Ryzen 9 3900X 12-Core Processor
    Memory: 33.80 GB / 63.94 GB
  Binaries:
    Node: 16.10.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.22.13 - C:\Program Files\nodejs\yarn.CMD
    npm: 7.24.0 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Edge: Spartan (44.22000.120.0), Chromium (98.0.1108.56)
    Internet Explorer: 11.0.22000.120

Used Package Manager

pnpm

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.