Property 'data' does not exist on type 'unknown' when using .post().json()

[bluecomm42]

Describe the bug

• Node.js version: N/A
• OS & version: N/A
• got version: 11.8.0

Actual behavior

When using (await got.post().json()).data in TypeScript it gives the error Property 'data' does not exist on type 'unknown'. Note: This is a complier error, the code runs without issue, but the compile-time type checker isn't happy.

Expected behavior

I would expect that the code wouldn't error, without me having to resort to using // @ts-ignore or writing a custom interface to conform the returned object to.

Code to reproduce

// <snip>
const res = await got
  .post("<url>", { body: form, headers })
  .json();
return res.data; // <-- error is here

Checklist

• [x] I have read the documentation.
• [x] I have tried my code with the latest version of Node.js and Got.

[szmarczak]

The .json() function takes a template. Use .json<{data: type}>()

[szmarczak]

This is TypeScript - we are trying to be as strict as possible.