🐛 Imports in declare module are not detected (TypeScript)

[fregante]

No repro

Prerequisites

• I'm using the latest version
• I've read the relevant documentation
• I've searched for existing issues
• I've checked the list of known issues
• I've read the issue reproduction guide

Reproduction url

Stub issue, I can create a repro if required

Reproduction access

• I've made sure the reproduction is publicly accessible

Description of the issue

npm install react-select react-select-virtualized

I have this in my globals.d.ts file and knip is missing the usage of "react-select":

// Package has no types: https://github.com/guiyep/react-select-virtualized/issues/293
declare module "react-select-virtualized" {
  export { default } from "react-select";
  // https://deluxe-blancmange-4a5494.netlify.app/#/?id=usage-with-creatable
  export { Creatable } from "react-select/creatable";
}

I can confirm that:

• Changing exports x from to import "react-select" doesn't change the result
• Adding import "react-select" outside declare module does fix it, but that changes how TypeScript interprets the file

[fregante]

Here's a smaller repro that doesn't make use of @types packages, to avoid confusion:

Download

repro.zip

Code

// global.d.ts
declare module "my-lil-error-checker" {
    export { isErrorLike } from "serialize-error";
}

Output:

Unused dependencies (1)
serialize-error  package.json:4:6
Unlisted dependencies (1)
my-lil-error-checker  index.ts

• Unlisted dependencies is expected, it doesn't exist.
• Unused dependencies is the bug/feature request

Like in the original post, adding import "serialize-error" at the top of global.d.ts recognizes the usage of the dependency.