The ESM symbol from eslint-utils ReferenceTracker should be typed

[MageJohn]

• I have tried restarting my IDE and the issue persists.
• I have updated to the latest version of the packages.
• I have read the FAQ and my problem is not listed.

Repro

import { ASTUtils } from "@typescript-eslint/experimental-utils";
const { ReferenceTracker } = ASTUtils;

const ESM = ReferenceTracker.ESM;

Expected Result

No type errors.

Actual Result

A type error, because there is no ESM key on the exported ReferenceTracker interface from ast-utils.

Additional Info

This seems to be an undocumented export, but you can see it being defined in eslint-utils here. It's apparently used to mark a traceMap as being an ES module.

Versions

package	version
@typescript-eslint/experimental-utils	4.26.1
TypeScript	4.3.2
node	12.22.0

[bradzacher]

We accept all contributions.
Don't be afraid to raise one to add it!