Narrow type for `config.kit.typescript.config`

[hyunbinseo]

Describe the problem

Current type: https://svelte.dev/docs/kit/configuration#typescript

config?: (config: Record<string, any>) => Record<string, any> | void;

Describe the proposed solution

Since the config param is generated by SvelteKit, it can be narrowed like this:

import type { CompilerOptions } from 'typescript';

type Config = {
  compilerOptions: CompilerOptions;
  include: string[];
  exclude: string[];
};

Alternatives considered

This does not work:

/**
 * @typedef {import('typescript').CompilerOptions} CompilerOptions
 * @typedef {Object} Config
 * @property {CompilerOptions} compilerOptions
 * @property {string[]} include
 * @property {string[]} exclude
 * @param {Config} config
 */v

Type 'Record<string, any>' is missing the following properties from type 'Config': compilerOptions, include, exclude ts(2322)

Importance

nice to have

Additional Information

No response