feat(kit): provide type support for module options in installModule

packages/kit/src/module/install.ts

@@ -1,5 +1,5 @@
 import { existsSync, promises as fsp, lstatSync } from 'node:fs'
-import type { ModuleMeta, Nuxt, NuxtModule } from '@nuxt/schema'
+import type { ModuleMeta, Nuxt, NuxtConfig, NuxtModule } from '@nuxt/schema'
 import { dirname, isAbsolute, join, resolve } from 'pathe'
 import { defu } from 'defu'
 import { isNuxt2 } from '../compatibility'
@@ -12,7 +12,10 @@ import { logger } from '../logger'
 const NODE_MODULES_RE = /[/\\]node_modules[/\\]/
 
 /** Installs a module on a Nuxt instance. */
-export async function installModule (moduleToInstall: string | NuxtModule, inlineOptions?: any, nuxt: Nuxt = useNuxt()) {
+export async function installModule<
+ T extends string | NuxtModule,
+ Config extends Extract<NonNullable<NuxtConfig['modules']>[number], [T, any]>,
+> (moduleToInstall: T, inlineOptions?: [Config] extends [never] ? any : Config[1], nuxt: Nuxt = useNuxt()) {
  const { nuxtModule, buildTimeModuleMeta } = await loadNuxtModuleInstance(moduleToInstall, nuxt)
 
  const localLayerModuleDirs = new Set<string>()

test/fixtures/basic-types/nuxt.config.ts

@@ -1,4 +1,4 @@
-import { addTypeTemplate } from 'nuxt/kit'
+import { addTypeTemplate, installModule } from 'nuxt/kit'
 
 export default defineNuxtConfig({
  experimental: {
@@ -41,6 +41,15 @@ export default defineNuxtConfig({
  filename: 'test.d.ts',
  getContents: () => 'declare type Fromage = "cheese"',
  })
+ function _test () {
+ installModule('~/modules/example', {
+ typeTest (val) {
+ // @ts-expect-error module type defines val as boolean
+ const b: string = val
+ return !!b
+ },
+ })
+ }
  },
  './modules/test',
  [