`RemoveFieldsWithType`: `Omit` instead of `Exclude`?

Is there an existing issue for this?

[x] I have searched the existing issues

Current behavior

In lib/types/remove-fields-with-type.type.ts, we have:

type KeysWithType<T, Type> = {
  [K in keyof T]: T[K] extends Type ? K : never;
}[keyof T];

export type RemoveFieldsWithType<T, Type> = Exclude<T, KeysWithType<T, Type>>;

I suspect that Omit should be used instead of Exclude in type RemoveFieldsWithType because Exclude<T, U> “excludes from T those types that are assignable to U”, whereas type Omit<T, K extends keyof any> “constructs a type with the properties of T except for those in type K”, which seems more what we want here.

You can see in the minimum reproduction code linked below a scenario where the type does not behaves correctly. Correct me if I've missed anything :).

Minimum reproduction code

https://gist.github.com/brkaisin/a305464bb3e3a25230a51329a929bdcc

Steps to reproduce

Just having the NestJS mapped types dependency.

Expected behavior

I think we should not have the error we see in the the minimum reproduction code.

Package version

2.0.5

Node.js version

21.7.1

In which operating systems have you tested?

[X] macOS
[ ] Windows
[ ] Linux

Other

No response

nestjs / mapped-types