`SuccessResponseJSON` and `ErrorResponseJSON` always return `never`

[piousdeer]

Description

I think SuccessResponseJSON and ErrorResponseJSON weren't updated along with their non-JSON counterparts in v7 and they should've been something like this:

- export type JSONLike<T> = FilterKeys<T, `${string}/json`>;
+ export type JSONLike = `${string}/json`;

- export type SuccessResponseJSON<PathMethod> = JSONLike<SuccessResponse<ResponseObjectMap<PathMethod>>>;
+ export type SuccessResponseJSON<PathMethod> = SuccessResponse<ResponseObjectMap<PathMethod>, JSONLike>;

Name	Version
openapi-typescript	7.1.0
Node.js	v21.7.2
OS + version	NixOS

Reproduction

import type { SuccessResponseJSON } from "openapi-typescript-helpers";

type x = SuccessResponseJSON<paths["/a/valid/path"]["get"]>; // `never`

type y = SuccessResponse<ResponseObjectMap<paths["/a/valid/path"]["get"]>>; // works

Checklist

• [ ] My OpenAPI schema passes the Redocly validator (npx @redocly/cli@latest lint)
• [ ] I’m willing to open a PR (see CONTRIBUTING.md)

[drwpow]

That’s a good suggestion, and we’d welcome a PR for those. Those are just helper utils that people can use or not use, and we make no guarantees about breaking API changes. And if they can be improved like this, PRs are always welcome