From 19a56de69e3abacc2913843ee49e456b9ea32f68 Mon Sep 17 00:00:00 2001
From: kazuya kawaguchi <kawakazu80@gmail.com>
Date: Tue, 17 Jun 2025 00:25:04 +0900
Subject: [PATCH 1/4] fix: error on duplicate `useI18n` calling on local scope

---
 packages/vue-i18n-core/src/errors.ts          |   12 +-
 packages/vue-i18n-core/src/i18n.ts            |    4 +
 .../test/__snapshots__/i18n.test.ts.snap      |    2 +
 packages/vue-i18n-core/test/i18n.test.ts      |   60 +
 v11/component.md                              |    1 +
 v11/composition.md                            | 2338 +++++++++++++++++
 v11/directive.md                              |    1 +
 v11/general.md                                | 1313 +++++++++
 v11/legacy.md                                 |    1 +
 9 files changed, 3728 insertions(+), 4 deletions(-)
 create mode 100644 v11/component.md
 create mode 100644 v11/composition.md
 create mode 100644 v11/directive.md
 create mode 100644 v11/general.md
 create mode 100644 v11/legacy.md

diff --git a/packages/vue-i18n-core/src/errors.ts b/packages/vue-i18n-core/src/errors.ts
index c9cc541b1..ce9bc2726 100644
--- a/packages/vue-i18n-core/src/errors.ts
+++ b/packages/vue-i18n-core/src/errors.ts
@@ -1,6 +1,6 @@
 import {
-  createCompileError,
-  CORE_ERROR_CODES_EXTEND_POINT
+  CORE_ERROR_CODES_EXTEND_POINT,
+  createCompileError
 } from '@intlify/core-base'
 
 import type { BaseError } from '@intlify/shared'
@@ -26,7 +26,9 @@ export const I18nErrorCodes = {
   // not compatible legacy vue-i18n constructor
   NOT_COMPATIBLE_LEGACY_VUE_I18N: 33,
   // Not available Compostion API in Legacy API mode. Please make sure that the legacy API mode is working properly
-  NOT_AVAILABLE_COMPOSITION_IN_LEGACY: 34
+  NOT_AVAILABLE_COMPOSITION_IN_LEGACY: 34,
+  // duplicate `useI18n` calling
+  DUPLICATE_USE_I18N_CALLING: 35
 } as const
 
 type I18nErrorCodes = (typeof I18nErrorCodes)[keyof typeof I18nErrorCodes]
@@ -57,5 +59,7 @@ export const errorMessages: { [code: number]: string } = {
   [I18nErrorCodes.NOT_COMPATIBLE_LEGACY_VUE_I18N]:
     'Not compatible legacy VueI18n.',
   [I18nErrorCodes.NOT_AVAILABLE_COMPOSITION_IN_LEGACY]:
-    'Not available Compostion API in Legacy API mode. Please make sure that the legacy API mode is working properly'
+    'Not available Compostion API in Legacy API mode. Please make sure that the legacy API mode is working properly',
+  [I18nErrorCodes.DUPLICATE_USE_I18N_CALLING]:
+    "Duplicate `useI18n` calling by local scope. Please don't call it on local scope"
 }
diff --git a/packages/vue-i18n-core/src/i18n.ts b/packages/vue-i18n-core/src/i18n.ts
index 1fc5eec4f..13e44194b 100644
--- a/packages/vue-i18n-core/src/i18n.ts
+++ b/packages/vue-i18n-core/src/i18n.ts
@@ -772,6 +772,10 @@ export function useI18n<
     setupLifeCycle(i18nInternal, instance, composer)
 
     i18nInternal.__setInstance(instance, composer)
+  } else {
+    if (scope === 'local') {
+      throw createI18nError(I18nErrorCodes.DUPLICATE_USE_I18N_CALLING)
+    }
   }
 
   return composer as unknown as Composer<
diff --git a/packages/vue-i18n-core/test/__snapshots__/i18n.test.ts.snap b/packages/vue-i18n-core/test/__snapshots__/i18n.test.ts.snap
index d2ba3da67..f7712a7da 100644
--- a/packages/vue-i18n-core/test/__snapshots__/i18n.test.ts.snap
+++ b/packages/vue-i18n-core/test/__snapshots__/i18n.test.ts.snap
@@ -7,3 +7,5 @@ exports[`slot reactivity > composable > ja 1`] = `"<h1>Root</h1><form><select><o
 exports[`slot reactivity > legacy > en 1`] = `"<h1>Root</h1><form><select><option value="en">en</option><option value="ja">ja</option></select></form><p>hello!</p><div class="child"><h1>Child</h1><form><select><option value="en">en</option><option value="ja">ja</option></select></form><p>hello!</p><div class="sub-child"><h1>Sub Child</h1><form><select><option value="en">en</option><option value="ja">ja</option></select></form><p>hello!</p></div> $t inside of slot <p>hello!</p> i18n-t inside of slot <p>hello!</p></div>"`;
 
 exports[`slot reactivity > legacy > ja 1`] = `"<h1>Root</h1><form><select><option value="en">en</option><option value="ja">ja</option></select></form><p>こんにちは！</p><div class="child"><h1>Child</h1><form><select><option value="en">en</option><option value="ja">ja</option></select></form><p>こんにちは！</p><div class="sub-child"><h1>Sub Child</h1><form><select><option value="en">en</option><option value="ja">ja</option></select></form><p>こんにちは！</p></div> $t inside of slot <p>こんにちは！</p> i18n-t inside of slot <p>こんにちは！</p></div>"`;
+
+exports[`useI18n > Duplicate \`useI18n\` calling by local scope. Please don't call it on local scope 1`] = `"<h1>Root</h1><form><select><option value="en">en</option><option value="ja">ja</option></select></form><p>hi!</p><p></p><p>Duplicate \`useI18n\` calling by local scope. Please don't call it on local scope</p>"`;
diff --git a/packages/vue-i18n-core/test/i18n.test.ts b/packages/vue-i18n-core/test/i18n.test.ts
index 0d6ae7488..f69ddbe47 100644
--- a/packages/vue-i18n-core/test/i18n.test.ts
+++ b/packages/vue-i18n-core/test/i18n.test.ts
@@ -622,6 +622,66 @@ describe('useI18n', () => {
       errorMessages[I18nErrorCodes.NOT_INSTALLED_WITH_PROVIDE]
     )
   })
+
+  test(errorMessages[I18nErrorCodes.DUPLICATE_USE_I18N_CALLING], async () => {
+    const i18n = createI18n<false>({
+      legacy: false,
+      locale: 'en',
+      fallbackLocale: ['en'],
+      messages: {
+        en: { hello: 'hello!' }
+      }
+    })
+
+    const useMyComposable = () => {
+      const count = ref(0)
+      const { t } = useI18n({
+        messages: {
+          en: {
+            there: 'hi there! {count}'
+          }
+        }
+      })
+      return { message: t('there', { count: count.value }) }
+    }
+
+    let error = ''
+    const App = defineComponent({
+      setup() {
+        let message: string = ''
+        let t: any // eslint-disable-line @typescript-eslint/no-explicit-any
+        try {
+          const i18n = useI18n({
+            messages: {
+              en: {
+                hi: 'hi!'
+              }
+            }
+          })
+          t = i18n.t
+          const ret = useMyComposable()
+          message = ret.message
+        } catch (e: any) {
+          error = e.message
+        }
+        return { t, message, error }
+      },
+      template: `
+        <h1>Root</h1>
+          <form>
+            <select v-model="locale">
+              <option value="en">en</option>
+              <option value="ja">ja</option>
+            </select>
+          </form>
+          <p>{{ t('hi') }}</p>
+          <p>{{ message }}</p>
+          <p>{{ error }}</p>
+      `
+    })
+    const { html } = await mount(App, i18n as any) // eslint-disable-line @typescript-eslint/no-explicit-any
+    expect(html()).toMatchSnapshot()
+  })
 })
 
 describe('slot reactivity', () => {
diff --git a/v11/component.md b/v11/component.md
new file mode 100644
index 000000000..0eac4eb52
--- /dev/null
+++ b/v11/component.md
@@ -0,0 +1 @@
+# Components
diff --git a/v11/composition.md b/v11/composition.md
new file mode 100644
index 000000000..e0457b759
--- /dev/null
+++ b/v11/composition.md
@@ -0,0 +1,2338 @@
+# Composition API
+
+## Composer
+
+Composer interfaces
+
+**Signature:**
+
+```typescript
+export interface Composer<Messages extends Record<string, any> = {}, DateTimeFormats extends Record<string, any> = {}, NumberFormats extends Record<string, any> = {}, OptionLocale = Locale, ResourceLocales = PickupLocales<NonNullable<Messages>> | PickupLocales<NonNullable<DateTimeFormats>> | PickupLocales<NonNullable<NumberFormats>>, Locales = Locale extends GeneratedLocale ? GeneratedLocale : OptionLocale extends Locale ? IsNever<ResourceLocales> extends true ? Locale : ResourceLocales : OptionLocale | ResourceLocales> extends ComposerCustom
+```
+
+**Details**
+
+This is the interface for being used for Vue 3 Composition API.
+
+### availableLocales
+
+**Signature:**
+
+```typescript
+readonly availableLocales: ComputedRef<Locales[]>;
+```
+
+**Details**
+
+The list of available locales in `messages` in lexical order.
+
+### d
+
+Datetime formatting
+
+**Signature:**
+
+```typescript
+d: ComposerDateTimeFormatting<
+  DateTimeFormats,
+  Locales,
+  RemoveIndexSignature<{
+    [K in keyof DefineDateTimeFormat]: DefineDateTimeFormat[K]
+  }>
+>
+```
+
+**Details**
+
+About details functions, See the [ComposerDateTimeFormatting](composition#composerdatetimeformatting)
+
+### datetimeFormats
+
+**Signature:**
+
+```typescript
+readonly datetimeFormats: ComputedRef<{
+        [K in keyof DateTimeFormats]: DateTimeFormats[K];
+    }>;
+```
+
+**Details**
+
+The datetime formats of localization.
+
+**See Also**
+
+- [Datetime Formatting](../../guide/essentials/datetime)
+
+### escapeParameter
+
+**Signature:**
+
+```typescript
+escapeParameter: boolean
+```
+
+**Details**
+
+Whether interpolation parameters are escaped before the message is translated.
+
+**See Also**
+
+- [HTML Message](../../guide/essentials/syntax#html-message)
+
+### fallbackFormat
+
+**Signature:**
+
+```typescript
+fallbackFormat: boolean
+```
+
+**Details**
+
+Whether suppress warnings when falling back to either `fallbackLocale` or root.
+
+**See Also**
+
+- [Fallbacking](../../guide/essentials/fallback)
+
+### fallbackLocale
+
+**Signature:**
+
+```typescript
+fallbackLocale: WritableComputedRef<FallbackLocales<Locales>>
+```
+
+**Details**
+
+The current fallback locales this Composer instance is using.
+
+**See Also**
+
+- [Fallbacking](../../guide/essentials/fallback)
+
+### fallbackRoot
+
+**Signature:**
+
+```typescript
+fallbackRoot: boolean
+```
+
+**Details**
+
+Whether to fall back to root level (global scope) localization when localization fails.
+
+**See Also**
+
+- [Fallbacking](../../guide/essentials/fallback)
+
+### fallbackWarn
+
+**Signature:**
+
+```typescript
+fallbackWarn: boolean | RegExp
+```
+
+**Details**
+
+Whether suppress fall back warnings when localization fails.
+
+**See Also**
+
+- [Fallbacking](../../guide/essentials/fallback)
+
+### id
+
+**Signature:**
+
+```typescript
+id: number
+```
+
+**Details**
+
+Instance ID.
+
+### inheritLocale
+
+**Signature:**
+
+```typescript
+inheritLocale: boolean
+```
+
+**Details**
+
+Whether inherit the root level locale to the component localization locale.
+
+**See Also**
+
+- [Local Scope](../../guide/essentials/scope#local-scope-2)
+
+### isGlobal
+
+**Signature:**
+
+```typescript
+readonly isGlobal: boolean;
+```
+
+**Details**
+
+Whether this composer instance is global or not
+
+### locale
+
+**Signature:**
+
+```typescript
+locale: WritableComputedRef<Locales>
+```
+
+**Details**
+
+The current locale this Composer instance is using.
+
+If the locale contains a territory and a dialect, this locale contains an implicit fallback.
+
+**See Also**
+
+- [Scope and Locale Changing](../../guide/essentials/scope)
+
+### messages
+
+**Signature:**
+
+```typescript
+readonly messages: ComputedRef<{
+        [K in keyof Messages]: Messages[K];
+    }>;
+```
+
+**Details**
+
+The locale messages of localization.
+
+**See Also**
+
+- [Getting Started](../../guide/essentials/started)
+
+### missingWarn
+
+**Signature:**
+
+```typescript
+missingWarn: boolean | RegExp
+```
+
+**Details**
+
+Whether suppress warnings outputted when localization fails.
+
+**See Also**
+
+- [Fallbacking](../../guide/essentials/fallback)
+
+### modifiers
+
+**Signature:**
+
+```typescript
+readonly modifiers: LinkedModifiers<VueMessageType>;
+```
+
+**Details**
+
+Custom Modifiers for linked messages.
+
+**See Also**
+
+- [Custom Modifiers](../../guide/essentials/syntax#custom-modifiers)
+
+### n
+
+Number Formatting
+
+**Signature:**
+
+```typescript
+n: ComposerNumberFormatting<
+  NumberFormats,
+  Locales,
+  RemoveIndexSignature<{
+    [K in keyof DefineNumberFormat]: DefineNumberFormat[K]
+  }>
+>
+```
+
+**Details**
+
+About details functions, See the [ComposerNumberFormatting](composition#composernumberformatting)
+
+### numberFormats
+
+**Signature:**
+
+```typescript
+readonly numberFormats: ComputedRef<{
+        [K in keyof NumberFormats]: NumberFormats[K];
+    }>;
+```
+
+**Details**
+
+The number formats of localization.
+
+**See Also**
+
+- [Number Formatting](../../guide/essentials/number)
+
+### pluralRules
+
+**Signature:**
+
+```typescript
+readonly pluralRules: PluralizationRules;
+```
+
+**Details**
+
+A set of rules for word pluralization
+
+**See Also**
+
+- [Custom Pluralization](../../guide/essentials/pluralization#custom-pluralization)
+
+### rt
+
+Resolve locale message translation
+
+**Signature:**
+
+```typescript
+rt: ComposerResolveLocaleMessageTranslation<Locales>
+```
+
+**Details**
+
+About details functions, See the [ComposerResolveLocaleMessageTranslation](composition#composerresolvelocalemessagetranslation)
+
+### t
+
+Locale message translation
+
+**Signature:**
+
+```typescript
+t: ComposerTranslation<
+  Messages,
+  Locales,
+  RemoveIndexSignature<{
+    [K in keyof DefineLocaleMessage]: DefineLocaleMessage[K]
+  }>
+>
+```
+
+**Details**
+
+About details functions, See the [ComposerTranslation](composition#composertranslation)
+
+### warnHtmlMessage
+
+**Signature:**
+
+```typescript
+warnHtmlMessage: boolean
+```
+
+**Details**
+
+Whether to allow the use locale messages of HTML formatting.
+
+If you set `false`, will check the locale messages on the Composer instance.
+
+If you are specified `true`, a warning will be output at console.
+
+**See Also**
+
+- [HTML Message](../../guide/essentials/syntax#html-message)
+- [Change `warnHtmlInMessage` option default value](../../guide/migration/breaking#change-warnhtmlinmessage-option-default-value)
+
+### getDateTimeFormat(locale)
+
+Get datetime format
+
+**Signature:**
+
+```typescript
+getDateTimeFormat<DateTimeSchema extends Record<string, any> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<DateTimeFormats>> = PickupLocales<NonNullable<DateTimeFormats>>, Return = IsNever<DateTimeSchema> extends true ? IsEmptyObject<DateTimeFormats> extends true ? RemoveIndexSignature<{
+        [K in keyof DefineDateTimeFormat]: DefineDateTimeFormat[K];
+    }> : NonNullable<DateTimeFormats>[Locale] : DateTimeSchema>(locale: LocaleSchema | Locale): Return;
+```
+
+#### Type Parameters
+
+| Parameter      | Description                                 |
+| -------------- | ------------------------------------------- |
+| DateTimeSchema | The datetime format schema, default `never` |
+
+**Details**
+
+get datetime format from Composer instance [datetimeFormats](composition#datetimeformats).
+
+#### Parameters
+
+| Parameter | Type                       | Description     |
+| --------- | -------------------------- | --------------- |
+| locale    | LocaleSchema &#124; Locale | A target locale |
+
+#### Returns
+
+Datetime format
+
+### getLocaleMessage(locale)
+
+Get locale message
+
+**Signature:**
+
+```typescript
+getLocaleMessage<MessageSchema extends LocaleMessage<VueMessageType> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<Messages>> = PickupLocales<NonNullable<Messages>>, Return = IsNever<MessageSchema> extends true ? IsEmptyObject<Messages> extends true ? RemoveIndexSignature<{
+        [K in keyof DefineLocaleMessage]: DefineLocaleMessage[K];
+    }> : NonNullable<Messages>[Locale] : MessageSchema>(locale: LocaleSchema | Locale): Return;
+```
+
+#### Type Parameters
+
+| Parameter     | Description                                |
+| ------------- | ------------------------------------------ |
+| MessageSchema | The locale message schema, default `never` |
+
+**Details**
+
+get locale message from Composer instance [messages](composition#messages).
+
+#### Parameters
+
+| Parameter | Type                       | Description     |
+| --------- | -------------------------- | --------------- |
+| locale    | LocaleSchema &#124; Locale | A target locale |
+
+#### Returns
+
+Locale messages
+
+### getMissingHandler()
+
+Get missing handler
+
+**Signature:**
+
+```typescript
+getMissingHandler(): MissingHandler | null;
+```
+
+**See Also**
+
+- [missing](composition#missing)
+
+#### Parameters
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+
+#### Returns
+
+[MissingHandler](composition#missinghandler)
+
+### getNumberFormat(locale)
+
+Get number format
+
+**Signature:**
+
+```typescript
+getNumberFormat<NumberSchema extends Record<string, any> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<NumberFormats>> = PickupLocales<NonNullable<NumberFormats>>, Return = IsNever<NumberSchema> extends true ? IsEmptyObject<NumberFormats> extends true ? RemoveIndexSignature<{
+        [K in keyof DefineNumberFormat]: DefineNumberFormat[K];
+    }> : NonNullable<NumberFormats>[Locale] : NumberSchema>(locale: LocaleSchema | Locale): Return;
+```
+
+#### Type Parameters
+
+| Parameter    | Description                               |
+| ------------ | ----------------------------------------- |
+| NumberSchema | The number format schema, default `never` |
+
+**Details**
+
+get number format from Composer instance [numberFormats](composition#numberFormats).
+
+#### Parameters
+
+| Parameter | Type                       | Description     |
+| --------- | -------------------------- | --------------- |
+| locale    | LocaleSchema &#124; Locale | A target locale |
+
+#### Returns
+
+Number format
+
+### getPostTranslationHandler()
+
+Get post translation handler
+
+**Signature:**
+
+```typescript
+getPostTranslationHandler(): PostTranslationHandler<VueMessageType> | null;
+```
+
+**See Also**
+
+- [missing](composition#posttranslation)
+
+#### Parameters
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+
+#### Returns
+
+### mergeDateTimeFormat(locale, format)
+
+Merge datetime format
+
+**Signature:**
+
+```typescript
+mergeDateTimeFormat<DateTimeSchema extends Record<string, any> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<DateTimeFormats>> = PickupLocales<NonNullable<DateTimeFormats>>, Formats = IsNever<DateTimeSchema> extends true ? Record<string, any> : DateTimeSchema>(locale: LocaleSchema | Locale, format: Formats): void;
+```
+
+#### Type Parameters
+
+| Parameter      | Description                                 |
+| -------------- | ------------------------------------------- |
+| DateTimeSchema | The datetime format schema, default `never` |
+
+**Details**
+
+Merge datetime format to Composer instance [datetimeFormats](composition#datetimeformats).
+
+#### Parameters
+
+| Parameter | Type                       | Description              |
+| --------- | -------------------------- | ------------------------ |
+| locale    | LocaleSchema &#124; Locale | A target locale          |
+| format    | Formats                    | A target datetime format |
+
+### mergeLocaleMessage(locale, message)
+
+Merge locale message
+
+**Signature:**
+
+```typescript
+mergeLocaleMessage<MessageSchema extends LocaleMessage<VueMessageType> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<Messages>> = PickupLocales<NonNullable<Messages>>, Message = IsNever<MessageSchema> extends true ? Record<string, any> : MessageSchema>(locale: LocaleSchema | Locale, message: Message): void;
+```
+
+#### Type Parameters
+
+| Parameter     | Description                                |
+| ------------- | ------------------------------------------ |
+| MessageSchema | The locale message schema, default `never` |
+
+**Details**
+
+Merge locale message to Composer instance [messages](composition#messages).
+
+#### Parameters
+
+| Parameter | Type                       | Description     |
+| --------- | -------------------------- | --------------- |
+| locale    | LocaleSchema &#124; Locale | A target locale |
+| message   | Message                    | A message       |
+
+### mergeNumberFormat(locale, format)
+
+Merge number format
+
+**Signature:**
+
+```typescript
+mergeNumberFormat<NumberSchema extends Record<string, any> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<NumberFormats>> = PickupLocales<NonNullable<NumberFormats>>, Formats = IsNever<NumberSchema> extends true ? Record<string, any> : NumberSchema>(locale: LocaleSchema | Locale, format: Formats): void;
+```
+
+#### Type Parameters
+
+| Parameter    | Description                               |
+| ------------ | ----------------------------------------- |
+| NumberSchema | The number format schema, default `never` |
+
+**Details**
+
+Merge number format to Composer instance [numberFormats](composition#numberFormats).
+
+#### Parameters
+
+| Parameter | Type                       | Description            |
+| --------- | -------------------------- | ---------------------- |
+| locale    | LocaleSchema &#124; Locale | A target locale        |
+| format    | Formats                    | A target number format |
+
+### setDateTimeFormat(locale, format)
+
+Set datetime format
+
+**Signature:**
+
+```typescript
+setDateTimeFormat<DateTimeSchema extends Record<string, any> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<DateTimeFormats>> = PickupLocales<NonNullable<DateTimeFormats>>, FormatsType = IsNever<DateTimeSchema> extends true ? IsEmptyObject<DateTimeFormats> extends true ? RemoveIndexSignature<{
+        [K in keyof DefineDateTimeFormat]: DefineDateTimeFormat[K];
+    }> : NonNullable<DateTimeFormats>[Locale] : DateTimeSchema, Formats extends FormatsType = FormatsType>(locale: LocaleSchema | Locale, format: Formats): void;
+```
+
+#### Type Parameters
+
+| Parameter      | Description                                 |
+| -------------- | ------------------------------------------- |
+| DateTimeSchema | The datetime format schema, default `never` |
+
+**Details**
+
+Set datetime format to Composer instance [datetimeFormats](composition#datetimeformats).
+
+#### Parameters
+
+| Parameter | Type                       | Description              |
+| --------- | -------------------------- | ------------------------ |
+| locale    | LocaleSchema &#124; Locale | A target locale          |
+| format    | Formats                    | A target datetime format |
+
+### setLocaleMessage(locale, message)
+
+Set locale message
+
+**Signature:**
+
+```typescript
+setLocaleMessage<MessageSchema extends LocaleMessage<VueMessageType> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<Messages>> = PickupLocales<NonNullable<Messages>>, MessageType = IsNever<MessageSchema> extends true ? IsEmptyObject<Messages> extends true ? RemoveIndexSignature<{
+        [K in keyof DefineLocaleMessage]: DefineLocaleMessage[K];
+    }> : NonNullable<Messages>[Locale] : MessageSchema, Message extends MessageType = MessageType>(locale: LocaleSchema | Locale, message: Message): void;
+```
+
+#### Type Parameters
+
+| Parameter     | Description                                |
+| ------------- | ------------------------------------------ |
+| MessageSchema | The locale message schema, default `never` |
+
+**Details**
+
+Set locale message to Composer instance [messages](composition#messages).
+
+#### Parameters
+
+| Parameter | Type                       | Description     |
+| --------- | -------------------------- | --------------- |
+| locale    | LocaleSchema &#124; Locale | A target locale |
+| message   | Message                    | A message       |
+
+### setMissingHandler(handler)
+
+Set missing handler
+
+**Signature:**
+
+```typescript
+setMissingHandler(handler: MissingHandler | null): void;
+```
+
+**See Also**
+
+- [missing](composition#missing)
+
+#### Parameters
+
+| Parameter | Type                       | Description                                    |
+| --------- | -------------------------- | ---------------------------------------------- |
+| handler   | MissingHandler &#124; null | A [MissingHandler](composition#missinghandler) |
+
+### setNumberFormat(locale, format)
+
+Set number format
+
+**Signature:**
+
+```typescript
+setNumberFormat<NumberSchema extends Record<string, any> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<NumberFormats>> = PickupLocales<NonNullable<NumberFormats>>, FormatsType = IsNever<NumberSchema> extends true ? IsEmptyObject<NumberFormats> extends true ? RemoveIndexSignature<{
+        [K in keyof DefineNumberFormat]: DefineNumberFormat[K];
+    }> : NonNullable<NumberFormats>[Locale] : NumberSchema, Formats extends FormatsType = FormatsType>(locale: LocaleSchema | Locale, format: Formats): void;
+```
+
+#### Type Parameters
+
+| Parameter    | Description                               |
+| ------------ | ----------------------------------------- |
+| NumberSchema | The number format schema, default `never` |
+
+**Details**
+
+Set number format to Composer instance [numberFormats](composition#numberFormats).
+
+#### Parameters
+
+| Parameter | Type                       | Description            |
+| --------- | -------------------------- | ---------------------- |
+| locale    | LocaleSchema &#124; Locale | A target locale        |
+| format    | Formats                    | A target number format |
+
+### setPostTranslationHandler(handler)
+
+Set post translation handler
+
+**Signature:**
+
+```typescript
+setPostTranslationHandler(handler: PostTranslationHandler<VueMessageType> | null): void;
+```
+
+**See Also**
+
+- [missing](composition#posttranslation)
+
+#### Parameters
+
+| Parameter | Type                                                     | Description |
+| --------- | -------------------------------------------------------- | ----------- |
+| handler   | PostTranslationHandler&lt;VueMessageType&gt; &#124; null | A           |
+
+### te(key, locale)
+
+Translation locale message exist
+
+**Signature:**
+
+```typescript
+te<Str extends string, Key extends PickupKeys<Messages> = PickupKeys<Messages>>(key: Str | Key, locale?: Locales): boolean;
+```
+
+**Details**
+
+whether do exist locale message on Composer instance [messages](composition#messages).
+
+If you specified `locale`, check the locale messages of `locale`.
+
+#### Parameters
+
+| Parameter | Type           | Description                                                     |
+| --------- | -------------- | --------------------------------------------------------------- |
+| key       | Str &#124; Key | A target locale message key                                     |
+| locale    | Locales        | A locale, it will be used over than global scope or local scope |
+
+#### Returns
+
+If found locale message, `true`, else `false`, Note that `false` is returned even if the value present in the key is not translatable, yet if `translateExistCompatible` is set to `true`, it will return `true` if the key is available, even if the value is not translatable.
+
+### tm(key)
+
+Locale messages getter
+
+**Signature:**
+
+```typescript
+tm<Key extends string, ResourceKeys extends PickupKeys<Messages> = PickupKeys<Messages>, Locale extends PickupLocales<NonNullable<Messages>> = PickupLocales<NonNullable<Messages>>, Target = IsEmptyObject<Messages> extends false ? NonNullable<Messages>[Locale] : RemoveIndexSignature<{
+        [K in keyof DefineLocaleMessage]: DefineLocaleMessage[K];
+    }>, Return = ResourceKeys extends ResourcePath<Target> ? ResourceValue<Target, ResourceKeys> : Record<string, any>>(key: Key | ResourceKeys): Return;
+```
+
+**Details**
+
+If [UseI18nScope](general#usei18nscope) `'local'` or Some [UseI18nOptions](composition#usei18noptions) are specified at `useI18n`, it’s translated in preferentially local scope locale messages than global scope locale messages.
+
+Based on the current `locale`, locale messages will be returned from Composer instance messages.
+
+If you change the `locale`, the locale messages returned will also correspond to the locale.
+
+If there are no locale messages for the given `key` in the composer instance messages, they will be returned with [fallbacking](../../guide/essentials/fallback).
+
+:::warning
+You need to use `rt` for the locale message returned by `tm`. see the [rt](composition#rt-message) details.
+:::
+
+#### Parameters
+
+| Parameter | Type                    | Description                 |
+| --------- | ----------------------- | --------------------------- |
+| key       | Key &#124; ResourceKeys | A target locale message key |
+
+Locale messages |
+
+**Examples**
+
+template block:
+
+```html
+<div class="container">
+  <template v-for="content in tm('contents')">
+    <h2>{{ rt(content.title) }}</h2>
+    <p v-for="paragraph in content.paragraphs">{{ rt(paragraph) }}</p>
+  </template>
+</div>
+```
+
+script block:
+
+```js
+import { defineComponent } from 'vue
+import { useI18n } from 'vue-i18n'
+
+export default defineComponent({
+  setup() {
+    const { rt, tm } = useI18n({
+      messages: {
+        en: {
+          contents: [
+            {
+              title: 'Title1',
+              // ...
+              paragraphs: [
+                // ...
+              ]
+            }
+          ]
+        }
+      }
+      // ...
+    })
+    // ...
+    return { ... , rt, tm }
+  }
+})
+```
+
+## ComposerAdditionalOptions
+
+Composer additional options for `useI18n`
+
+**Signature:**
+
+```typescript
+export interface ComposerAdditionalOptions
+```
+
+**Details**
+
+`ComposerAdditionalOptions` is extend for [ComposerOptions](composition#composeroptions), so you can specify these options.
+
+**See Also**
+
+- [useI18n](composition#usei18n)
+
+### useScope
+
+## ComposerCustom
+
+The type custom definition of Composer
+
+**Signature:**
+
+```typescript
+export interface ComposerCustom
+```
+
+**Details**
+
+The interface that can extend Composer.
+
+The type defined by 3rd party (e.g. nuxt/i18n)
+
+**Examples**
+
+```ts
+// vue-i18n.d.ts (`.d.ts` file at your app)
+
+declare module 'vue-i18n' {
+  interface ComposerCustom {
+    localeCodes: string[]
+  }
+}
+```
+
+## ComposerDateTimeFormatting
+
+Datetime formatting functions
+
+**Signature:**
+
+```typescript
+export interface ComposerDateTimeFormatting<DateTimeFormats extends Record<string, any> = {}, Locales = 'en-US', DefinedDateTimeFormat extends RemovedIndexResources<DefineDateTimeFormat> = RemovedIndexResources<DefineDateTimeFormat>, C = IsEmptyObject<DefinedDateTimeFormat> extends false ? PickupFormatPathKeys<{
+    [K in keyof DefinedDateTimeFormat]: DefinedDateTimeFormat[K];
+}> : never, M = IsEmptyObject<DateTimeFormats> extends false ? PickupFormatKeys<DateTimeFormats> : never, ResourceKeys extends C | M = IsNever<C> extends false ? IsNever<M> extends false ? C | M : C : IsNever<M> extends false ? M : never>
+```
+
+**Details**
+
+This is the interface for [Composer](composition#composer)
+
+### (value: number | Date | string): string;
+
+Datetime formatting
+
+**Signature:**
+
+```typescript
+(value: number | Date | string): string;
+```
+
+**Details**
+
+If this is used in a reactive context, it will re-evaluate once the locale changes.
+
+If [UseI18nScope](general#usei18nscope) `'local'` or Some [UseI18nOptions](composition#usei18noptions) are specified at `useI18n`, it’s translated in preferentially local scope datetime formats than global scope datetime formats.
+
+If not, then it’s formatted with global scope datetime formats.
+
+**See Also**
+
+- [Datetime formatting](../../guide/essentials/datetime)
+
+#### Parameters
+
+| Parameter | Type                             | Description                                                     |
+| --------- | -------------------------------- | --------------------------------------------------------------- |
+| value     | number &#124; Date &#124; string | A value, timestamp number or `Date` instance or ISO 8601 string |
+
+#### Returns
+
+Formatted value
+
+### (value: Value, keyOrOptions: Key | ResourceKeys | DateTimeOptions&lt;Key | ResourceKeys, Locales&gt;): string;
+
+Datetime formatting
+
+**Signature:**
+
+```typescript
+<Value extends number | Date | string = number, Key extends string = string>(value: Value, keyOrOptions: Key | ResourceKeys | DateTimeOptions<Key | ResourceKeys, Locales>): string;
+```
+
+**Details**
+
+Overloaded `d`. About details, see the [call signature](composition#value-number-date-string-string) details.
+
+In this overloaded `d`, format in datetime format for a key registered in datetime formats.
+
+#### Parameters
+
+| Parameter    | Type                                                                                   | Description                                                      |
+| ------------ | -------------------------------------------------------------------------------------- | ---------------------------------------------------------------- |
+| value        | Value                                                                                  | A value, timestamp number or `Date` instance or ISO 8601 string  |
+| keyOrOptions | Key &#124; ResourceKeys &#124; DateTimeOptions&lt;Key &#124; ResourceKeys, Locales&gt; | A key of datetime formats, or additional for datetime formatting |
+
+#### Returns
+
+Formatted value
+
+### (value: Value, keyOrOptions: Key | ResourceKeys | DateTimeOptions&lt;Key | ResourceKeys, Locales&gt;, locale: Locales): string;
+
+Datetime formatting
+
+**Signature:**
+
+```typescript
+<Value extends number | Date | string = number, Key extends string = string>(value: Value, keyOrOptions: Key | ResourceKeys | DateTimeOptions<Key | ResourceKeys, Locales>, locale: Locales): string;
+```
+
+**Details**
+
+Overloaded `d`. About details, see the [call signature](composition#value-number-date-string-string) details.
+
+In this overloaded `d`, format in datetime format for a key registered in datetime formats at target locale
+
+#### Parameters
+
+| Parameter    | Type                                                                                   | Description                                                      |
+| ------------ | -------------------------------------------------------------------------------------- | ---------------------------------------------------------------- |
+| value        | Value                                                                                  | A value, timestamp number or `Date` instance or ISO 8601 string  |
+| keyOrOptions | Key &#124; ResourceKeys &#124; DateTimeOptions&lt;Key &#124; ResourceKeys, Locales&gt; | A key of datetime formats, or additional for datetime formatting |
+| locale       | Locales                                                                                | A locale, it will be used over than global scope or local scope. |
+
+#### Returns
+
+Formatted value
+
+## ComposerNumberFormatting
+
+Number formatting functions
+
+**Signature:**
+
+```typescript
+export interface ComposerNumberFormatting<NumberFormats extends Record<string, any> = {}, Locales = 'en-US', DefinedNumberFormat extends RemovedIndexResources<DefineNumberFormat> = RemovedIndexResources<DefineNumberFormat>, C = IsEmptyObject<DefinedNumberFormat> extends false ? PickupFormatPathKeys<{
+    [K in keyof DefinedNumberFormat]: DefinedNumberFormat[K];
+}> : never, M = IsEmptyObject<NumberFormats> extends false ? PickupFormatKeys<NumberFormats> : never, ResourceKeys extends C | M = IsNever<C> extends false ? IsNever<M> extends false ? C | M : C : IsNever<M> extends false ? M : never>
+```
+
+**Details**
+
+This is the interface for [Composer](composition#composer)
+
+### (value: number): string;
+
+Number Formatting
+
+**Signature:**
+
+```typescript
+(value: number): string;
+```
+
+**Details**
+
+If this is used in a reactive context, it will re-evaluate once the locale changes.
+
+If [UseI18nScope](general#usei18nscope) `'local'` or Some [UseI18nOptions](composition#usei18noptions) are specified at `useI18n`, it’s translated in preferentially local scope datetime formats than global scope datetime formats.
+
+If not, then it’s formatted with global scope number formats.
+
+**See Also**
+
+- [Number formatting](../../guide/essentials/number)
+
+#### Parameters
+
+| Parameter | Type   | Description    |
+| --------- | ------ | -------------- |
+| value     | number | A number value |
+
+#### Returns
+
+Formatted value
+
+### (value: number, keyOrOptions: Key | ResourceKeys | NumberOptions&lt;Key | ResourceKeys, Locales&gt;): PartType;
+
+Number Formatting
+
+**Signature:**
+
+```typescript
+<PartType extends string | Intl.NumberFormatPart[] = string | Intl.NumberFormatPart[], Key extends string = string>(value: number, keyOrOptions: Key | ResourceKeys | NumberOptions<Key | ResourceKeys, Locales>): PartType;
+```
+
+**Details**
+
+Overloaded `n`. About details, see the [call signature](composition#value-number-string) details.
+
+In this overloaded `n`, format in number format for a key registered in number formats.
+
+#### Parameters
+
+| Parameter    | Type                                                                                 | Description                                                  |
+| ------------ | ------------------------------------------------------------------------------------ | ------------------------------------------------------------ |
+| value        | number                                                                               | A number value                                               |
+| keyOrOptions | Key &#124; ResourceKeys &#124; NumberOptions&lt;Key &#124; ResourceKeys, Locales&gt; | A key of number formats, or additional for number formatting |
+
+#### Returns
+
+Formatted value
+
+### (value: number, keyOrOptions: Key | ResourceKeys | NumberOptions&lt;Key | ResourceKeys, Locales&gt;, locale: Locales): PartType;
+
+Number Formatting
+
+**Signature:**
+
+```typescript
+<PartType extends string | Intl.NumberFormatPart[] = string | Intl.NumberFormatPart[], Key extends string = string>(value: number, keyOrOptions: Key | ResourceKeys | NumberOptions<Key | ResourceKeys, Locales>, locale: Locales): PartType;
+```
+
+**Details**
+
+Overloaded `n`. About details, see the [call signature](composition#value-number-string) details.
+
+In this overloaded `n`, format in number format for a key registered in number formats at target locale.
+
+#### Parameters
+
+| Parameter    | Type                                                                                 | Description                                                      |
+| ------------ | ------------------------------------------------------------------------------------ | ---------------------------------------------------------------- |
+| value        | number                                                                               | A number value                                                   |
+| keyOrOptions | Key &#124; ResourceKeys &#124; NumberOptions&lt;Key &#124; ResourceKeys, Locales&gt; | A key of number formats, or additional for number formatting     |
+| locale       | Locales                                                                              | A locale, it will be used over than global scope or local scope. |
+
+#### Returns
+
+Formatted value
+
+## ComposerOptions
+
+Composer Options
+
+**Signature:**
+
+```typescript
+export interface ComposerOptions<Schema extends {
+    message?: unknown;
+    datetime?: unknown;
+    number?: unknown;
+} = {
+    message: DefaultLocaleMessageSchema;
+    datetime: DefaultDateTimeFormatSchema;
+    number: DefaultNumberFormatSchema;
+}, Locales extends {
+    messages: unknown;
+    datetimeFormats: unknown;
+    numberFormats: unknown;
+} | string = Locale, MessagesLocales = Locales extends {
+    messages: infer M;
+} ? M : Locales extends string ? Locales : Locale, DateTimeFormatsLocales = Locales extends {
+    datetimeFormats: infer D;
+} ? D : Locales extends string ? Locales : Locale, NumberFormatsLocales = Locales extends {
+    numberFormats: infer N;
+} ? N : Locales extends string ? Locales : Locale, MessageSchema = Schema extends {
+    message: infer M;
+} ? M : DefaultLocaleMessageSchema, DateTimeSchema = Schema extends {
+    datetime: infer D;
+} ? D : DefaultDateTimeFormatSchema, NumberSchema = Schema extends {
+    number: infer N;
+} ? N : DefaultNumberFormatSchema, _Messages extends LocaleMessages<MessageSchema, MessagesLocales, VueMessageType> = LocaleMessages<MessageSchema, MessagesLocales, VueMessageType>, _DateTimeFormats extends DateTimeFormatsType<DateTimeSchema, DateTimeFormatsLocales> = DateTimeFormatsType<DateTimeSchema, DateTimeFormatsLocales>, _NumberFormats extends NumberFormatsType<NumberSchema, NumberFormatsLocales> = NumberFormatsType<NumberSchema, NumberFormatsLocales>>
+```
+
+**Details**
+
+This is options to create composer.
+
+### datetime
+
+### datetimeFormats
+
+### escapeParameter
+
+**Signature:**
+
+```typescript
+escapeParameter?: boolean;
+```
+
+**Details**
+
+If `escapeParameter` is configured as true then interpolation parameters are escaped before the message is translated.
+
+This is useful when translation output is used in `v-html` and the translation resource contains html markup (e.g. around a user provided value).
+
+This usage pattern mostly occurs when passing precomputed text strings into UI components.
+
+The escape process involves replacing the following symbols with their respective HTML character entities: `<`, `>`, `"`, `'`.
+
+Setting `escapeParameter` as true should not break existing functionality but provides a safeguard against a subtle type of XSS attack vectors.
+
+**Default Value**
+
+`false`
+
+**See Also**
+
+- [HTML Message](../../guide/essentials/syntax#html-message)
+
+### fallbackFormat
+
+**Signature:**
+
+```typescript
+fallbackFormat?: boolean;
+```
+
+**Details**
+
+Whether do template interpolation on translation keys when your language lacks a translation for a key.
+
+If `true`, skip writing templates for your "base" language; the keys are your templates.
+
+**Default Value**
+
+`false`
+
+**See Also**
+
+- [Fallbacking](../../guide/essentials/fallback)
+
+### fallbackLocale
+
+**Signature:**
+
+```typescript
+fallbackLocale?: FallbackLocale;
+```
+
+**Details**
+
+The locale of fallback localization.
+
+For more complex fallback definitions see fallback.
+
+**Default Value**
+
+The default `'en-US'` for the `locale` if it's not specified, or it's `locale` value
+
+**See Also**
+
+- [Fallbacking](../../guide/essentials/fallback)
+
+### fallbackRoot
+
+**Signature:**
+
+```typescript
+fallbackRoot?: boolean;
+```
+
+**Details**
+
+In the component localization, whether to fallback to root level (global scope) localization when localization fails.
+
+If `false`, it's not fallback to root.
+
+**Default Value**
+
+`true`
+
+**See Also**
+
+- [Fallbacking](../../guide/essentials/fallback)
+
+### fallbackWarn
+
+**Signature:**
+
+```typescript
+fallbackWarn?: boolean | RegExp;
+```
+
+**Details**
+
+Whether suppress warnings when falling back to either `fallbackLocale` or root.
+
+If `false`, suppress fall back warnings.
+
+If you use regular expression, you can suppress fallback warnings that it match with translation key (e.g. `t`).
+
+**Default Value**
+
+`true`
+
+**See Also**
+
+- [Fallbacking](../../guide/essentials/fallback)
+
+### flatJson
+
+**Signature:**
+
+```typescript
+flatJson?: boolean;
+```
+
+**Details**
+
+Allow use flat json messages or not
+
+**Default Value**
+
+`false`
+
+### inheritLocale
+
+**Signature:**
+
+```typescript
+inheritLocale?: boolean;
+```
+
+**Details**
+
+Whether inheritance the root level locale to the component localization locale.
+
+If `false`, regardless of the root level locale, localize for each component locale.
+
+**Default Value**
+
+`true`
+
+**See Also**
+
+- [Local Scope](../../guide/essentials/scope#local-scope-2)
+
+### locale
+
+**Signature:**
+
+```typescript
+locale?: Locale;
+```
+
+**Details**
+
+The locale of localization.
+
+If the locale contains a territory and a dialect, this locale contains an implicit fallback.
+
+**Default Value**
+
+`'en-US'`
+
+**See Also**
+
+- [Scope and Locale Changing](../../guide/essentials/scope)
+
+### message
+
+### messageCompiler
+
+**Signature:**
+
+```typescript
+messageCompiler?: MessageCompiler;
+```
+
+**Details**
+
+A compiler for custom message format.
+
+If not specified, the vue-i18n default message compiler will be used.
+
+You will need to implement your own message compiler that returns Message Functions
+
+:::tip
+:new: v9.3+
+:::
+
+:::warning
+The Custom Message Format is an experimental feature. It may receive breaking changes or be removed in the future.
+:::
+
+**Default Value**
+
+`undefined`
+
+**See Also**
+
+- [Custom Message Format](../../guide/advanced/format)
+
+**Examples**
+
+Here is an example of how to custom message compiler with `intl-messageformat`
+
+```js
+import { createI18n } from 'vue-i18n'
+import IntlMessageFormat from 'intl-messageformat'
+
+function messageCompiler(message, { locale, key, onError }) {
+  if (typeof message === 'string') {
+    // You can tune your message compiler performance more with your cache strategy or also memoization at here
+    const formatter = new IntlMessageFormat(message, locale)
+    return ctx => formatter.format(ctx.values)
+  } else {
+    // If you would like to support it for AST,
+    // You need to transform locale mesages such as `json`, `yaml`, etc. with the bundle plugin.
+    onError && onError(new Error('not support for AST'))
+    return () => key // return default with `key`
+  }
+}
+
+// call with I18n option
+const i18n = createI18n({
+  locale: 'ja',
+  messageCompiler, // set your message compiler
+  messages: {
+    en: {
+      hello: 'hello world!',
+      greeting: 'hi, {name}!',
+      // ICU Message format
+      photo: `You have {numPhotos, plural,
+        =0 {no photos.}
+        =1 {one photo.}
+        other {# photos.}
+      }`
+    }
+  }
+})
+
+// the below your something to do ...
+// ...
+```
+
+### messageResolver
+
+**Signature:**
+
+```typescript
+messageResolver?: MessageResolver;
+```
+
+**Details**
+
+A message resolver to resolve [`messages`](composition#messages).
+
+If not specified, the vue-i18n internal message resolver will be used by default.
+
+You need to implement a message resolver yourself that supports the following requirements:
+
+- Resolve the message using the locale message of [`locale`](composition#locale) passed as the first argument of the message resolver, and the path passed as the second argument.
+
+- If the message could not be resolved, you need to return `null`.
+
+- If you will be returned `null`, the message resolver will also be called on fallback if [`fallbackLocale`](composition#fallbacklocale-2) is enabled, so the message will need to be resolved as well.
+
+The message resolver is called indirectly by the following APIs:
+
+- [`t`](composition#t-key)
+
+- [`te`](composition#te-key-locale)
+
+- [`tm`](composition#tm-key)
+
+- [Translation component](component#translation)
+
+:::tip
+:new: v9.2+
+:::
+
+:::warning
+If you use the message resolver, the [`flatJson`](composition#flatjson) setting will be ignored. That is, you need to resolve the flat JSON by yourself.
+:::
+
+**Default Value**
+
+`undefined`
+
+**See Also**
+
+- [Fallbacking](../../guide/essentials/fallback)
+
+**Examples**
+
+Here is an example of how to set it up using your `createI18n`:
+
+```js
+import { createI18n } from 'vue-i18n'
+
+// your message resolver
+function messageResolver(obj, path) {
+  // simple message resolving!
+  const msg = obj[path]
+  return msg != null ? msg : null
+}
+
+// call with I18n option
+const i18n = createI18n({
+  locale: 'ja',
+  messageResolver, // set your message resolver
+  messages: {
+    en: { ... },
+    ja: { ... }
+  }
+})
+
+// the below your something to do ...
+// ...
+```
+
+### messages
+
+### missing
+
+**Signature:**
+
+```typescript
+missing?: MissingHandler;
+```
+
+**Details**
+
+A handler for localization missing.
+
+The handler gets called with the localization target locale, localization path key, the Vue instance and values.
+
+If missing handler is assigned, and occurred localization missing, it's not warned.
+
+**Default Value**
+
+`null`
+
+### missingWarn
+
+**Signature:**
+
+```typescript
+missingWarn?: boolean | RegExp;
+```
+
+**Details**
+
+Whether suppress warnings outputted when localization fails.
+
+If `false`, suppress localization fail warnings.
+
+If you use regular expression, you can suppress localization fail warnings that it match with translation key (e.g. `t`).
+
+**Default Value**
+
+`true`
+
+**See Also**
+
+- [Fallbacking](../../guide/essentials/fallback)
+
+### modifiers
+
+**Signature:**
+
+```typescript
+modifiers?: LinkedModifiers<VueMessageType>;
+```
+
+**Details**
+
+Custom Modifiers for linked messages.
+
+**See Also**
+
+- [Custom Modifiers](../../guide/essentials/syntax#custom-modifiers)
+
+### number
+
+### numberFormats
+
+### pluralRules
+
+**Signature:**
+
+```typescript
+pluralRules?: PluralizationRules;
+```
+
+**Details**
+
+A set of rules for word pluralization
+
+**Default Value**
+
+`{}`
+
+**See Also**
+
+- [Custom Pluralization](../../guide/essentials/pluralization#custom-pluralization)
+
+### postTranslation
+
+**Signature:**
+
+```typescript
+postTranslation?: PostTranslationHandler<VueMessageType>;
+```
+
+**Details**
+
+A handler for post processing of translation.
+
+The handler gets after being called with the `t`.
+
+This handler is useful if you want to filter on translated text such as space trimming.
+
+**Default Value**
+
+`null`
+
+### warnHtmlMessage
+
+**Signature:**
+
+```typescript
+warnHtmlMessage?: boolean;
+```
+
+**Details**
+
+Whether to allow the use locale messages of HTML formatting.
+
+See the warnHtmlMessage property.
+
+**Default Value**
+
+`'off'`
+
+**See Also**
+
+- [HTML Message](../../guide/essentials/syntax#html-message)
+- [Change `warnHtmlInMessage` option default value](../../guide/migration/breaking#change-warnhtmlinmessage-option-default-value)
+
+## ComposerResolveLocaleMessageTranslation
+
+Resolve locale message translation functions
+
+**Signature:**
+
+```typescript
+export interface ComposerResolveLocaleMessageTranslation<Locales = 'en-US'>
+```
+
+**Details**
+
+This is the interface for [Composer](composition#composer)
+
+### (message: MessageFunction&lt;VueMessageType&gt; | VueMessageType): string;
+
+Resolve locale message translation
+
+**Signature:**
+
+```typescript
+(message: MessageFunction<VueMessageType> | VueMessageType): string;
+```
+
+**Details**
+
+If this is used in a reactive context, it will re-evaluate once the locale changes.
+
+If [UseI18nScope](general#usei18nscope) `'local'` or Some [UseI18nOptions](composition#usei18noptions) are specified at `useI18n`, it’s translated in preferentially local scope locale messages than global scope locale messages.
+
+If not, then it’s translated with global scope locale messages.
+
+**See Also**
+
+- [Scope and Locale Changing](../../guide/essentials/scope)
+
+:::tip
+The use-case for `rt` is for programmatic locale messages translation with using `tm`, `v-for`, javascript `for` statement.
+:::
+
+:::warning
+`rt` differs from `t` in that it processes the locale message directly, not the key of the locale message. There is no internal fallback with `rt`. You need to understand and use the structure of the locale messge returned by `tm`.
+:::
+
+#### Parameters
+
+| Parameter | Type                                                        | Description                                                                                           |
+| --------- | ----------------------------------------------------------- | ----------------------------------------------------------------------------------------------------- |
+| message   | MessageFunction&lt;VueMessageType&gt; &#124; VueMessageType | A target locale message to be resolved. You will need to specify the locale message returned by `tm`. |
+
+#### Returns
+
+Translated message
+
+### (message: MessageFunction&lt;VueMessageType&gt; | VueMessageType, plural: number, options?: TranslateOptions&lt;Locales&gt;): string;
+
+Resolve locale message translation for plurals
+
+**Signature:**
+
+```typescript
+(message: MessageFunction<VueMessageType> | VueMessageType, plural: number, options?: TranslateOptions<Locales>): string;
+```
+
+**Details**
+
+Overloaded `rt`. About details, see the [call signature](composition#message-messagefunction-message-message-string) details.
+
+In this overloaded `rt`, return a pluralized translation message.
+
+**See Also**
+
+- [Pluralization](../../guide/essentials/pluralization)
+
+:::tip
+The use-case for `rt` is for programmatic locale messages translation with using `tm`, `v-for`, javascript `for` statement.
+:::
+
+:::warning
+`rt` differs from `t` in that it processes the locale message directly, not the key of the locale message. There is no internal fallback with `rt`. You need to understand and use the structure of the locale messge returned by `tm`.
+:::
+
+#### Parameters
+
+| Parameter | Type                                                        | Description                                                                                           |
+| --------- | ----------------------------------------------------------- | ----------------------------------------------------------------------------------------------------- |
+| message   | MessageFunction&lt;VueMessageType&gt; &#124; VueMessageType | A target locale message to be resolved. You will need to specify the locale message returned by `tm`. |
+| plural    | number                                                      | Which plural string to get. 1 returns the first one.                                                  |
+| options   | TranslateOptions&lt;Locales&gt;                             | Additional for translation                                                                            |
+
+#### Returns
+
+Translated message
+
+### (message: MessageFunction&lt;VueMessageType&gt; | VueMessageType, list: unknown[], options?: TranslateOptions&lt;Locales&gt;): string;
+
+Resolve locale message translation for list interpolations
+
+**Signature:**
+
+```typescript
+(message: MessageFunction<VueMessageType> | VueMessageType, list: unknown[], options?: TranslateOptions<Locales>): string;
+```
+
+**Details**
+
+Overloaded `rt`. About details, see the [call signature](composition#message-messagefunction-message-message-string) details.
+
+In this overloaded `rt`, return a pluralized translation message.
+
+**See Also**
+
+- [List interpolation](../../guide/essentials/syntax#list-interpolation)
+
+:::tip
+The use-case for `rt` is for programmatic locale messages translation with using `tm`, `v-for`, javascript `for` statement.
+:::
+
+:::warning
+`rt` differs from `t` in that it processes the locale message directly, not the key of the locale message. There is no internal fallback with `rt`. You need to understand and use the structure of the locale messge returned by `tm`.
+:::
+
+#### Parameters
+
+| Parameter | Type                                                        | Description                                                                                           |
+| --------- | ----------------------------------------------------------- | ----------------------------------------------------------------------------------------------------- |
+| message   | MessageFunction&lt;VueMessageType&gt; &#124; VueMessageType | A target locale message to be resolved. You will need to specify the locale message returned by `tm`. |
+| list      | unknown[]                                                   | A values of list interpolation.                                                                       |
+| options   | TranslateOptions&lt;Locales&gt;                             | Additional for translation                                                                            |
+
+#### Returns
+
+Translated message
+
+### (message: MessageFunction&lt;VueMessageType&gt; | VueMessageType, named: NamedValue, options?: TranslateOptions&lt;Locales&gt;): string;
+
+Resolve locale message translation for named interpolations
+
+**Signature:**
+
+```typescript
+(message: MessageFunction<VueMessageType> | VueMessageType, named: NamedValue, options?: TranslateOptions<Locales>): string;
+```
+
+**Details**
+
+Overloaded `rt`. About details, see the [call signature](composition#message-messagefunction-message-message-string) details.
+
+In this overloaded `rt`, for each placeholder x, the locale messages should contain a `{x}` token.
+
+**See Also**
+
+- [Named interpolation](../../guide/essentials/syntax#named-interpolation)
+
+:::tip
+The use-case for `rt` is for programmatic locale messages translation with using `tm`, `v-for`, javascript `for` statement.
+:::
+
+:::warning
+`rt` differs from `t` in that it processes the locale message directly, not the key of the locale message. There is no internal fallback with `rt`. You need to understand and use the structure of the locale messge returned by `tm`.
+:::
+
+#### Parameters
+
+| Parameter | Type                                                        | Description                                                                                           |
+| --------- | ----------------------------------------------------------- | ----------------------------------------------------------------------------------------------------- |
+| message   | MessageFunction&lt;VueMessageType&gt; &#124; VueMessageType | A target locale message to be resolved. You will need to specify the locale message returned by `tm`. |
+| named     | NamedValue                                                  | A values of named interpolation.                                                                      |
+| options   | TranslateOptions&lt;Locales&gt;                             | Additional for translation                                                                            |
+
+#### Returns
+
+Translated message
+
+## ComposerTranslation
+
+Locale message translation functions
+
+**Signature:**
+
+```typescript
+export interface ComposerTranslation<Messages extends Record<string, any> = {}, Locales = 'en-US', DefinedLocaleMessage extends RemovedIndexResources<DefineLocaleMessage> = RemovedIndexResources<DefineLocaleMessage>, C = IsEmptyObject<DefinedLocaleMessage> extends false ? JsonPaths<{
+    [K in keyof DefinedLocaleMessage]: DefinedLocaleMessage[K];
+}> : never, M = IsEmptyObject<Messages> extends false ? TranslationsPaths<Messages> : never, ResourceKeys extends C | M = IsNever<C> extends false ? IsNever<M> extends false ? C | M : C : IsNever<M> extends false ? M : never>
+```
+
+**Details**
+
+This is the interface for [Composer](composition#composer)
+
+### (key: Key | ResourceKeys | number): string;
+
+Locale message translation
+
+**Signature:**
+
+```typescript
+<Key extends string>(key: Key | ResourceKeys | number): string;
+```
+
+**Details**
+
+If this is used in a reactive context, it will re-evaluate once the locale changes.
+
+If [UseI18nScope](general#usei18nscope) `'local'` or Some [UseI18nOptions](composition#usei18noptions) are specified at `useI18n`, it’s translated in preferentially local scope locale messages than global scope locale messages.
+
+If not, then it’s translated with global scope locale messages.
+
+**See Also**
+
+- [Scope and Locale Changing](../../guide/essentials/scope)
+
+#### Parameters
+
+| Parameter | Type                                  | Description                 |
+| --------- | ------------------------------------- | --------------------------- |
+| key       | Key &#124; ResourceKeys &#124; number | A target locale message key |
+
+#### Returns
+
+Translated message
+
+### (key: Key | ResourceKeys | number, named: NamedValue): string;
+
+Locale message translation for named interpolations
+
+**Signature:**
+
+```typescript
+<Key extends string>(key: Key | ResourceKeys | number, named: NamedValue): string;
+```
+
+**Details**
+
+Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
+
+In this overloaded `t`, for each placeholder x, the locale messages should contain a `{x}` token.
+
+You can also suppress the warning, when the translation missing according to the options.
+
+**See Also**
+
+- [Named interpolation](../../guide/essentials/syntax#named-interpolation)
+
+#### Parameters
+
+| Parameter | Type                                  | Description                     |
+| --------- | ------------------------------------- | ------------------------------- |
+| key       | Key &#124; ResourceKeys &#124; number | A target locale message key     |
+| named     | NamedValue                            | A values of named interpolation |
+
+#### Returns
+
+Translated message
+
+### (key: Key | ResourceKeys | number, named: NamedValue, plural: number): string;
+
+Locale message translation for named interpolations and plurals
+
+**Signature:**
+
+```typescript
+<Key extends string>(key: Key | ResourceKeys | number, named: NamedValue, plural: number): string;
+```
+
+**Details**
+
+Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
+
+In this overloaded `t`, for each placeholder x, the locale messages should contain a `{x}` token, and return a pluralized translation message.
+
+**See Also**
+
+- [Pluralization](../../guide/essentials/pluralization)
+- [Named interpolation](../../guide/essentials/syntax#named-interpolation)
+
+#### Parameters
+
+| Parameter | Type                                  | Description                                          |
+| --------- | ------------------------------------- | ---------------------------------------------------- |
+| key       | Key &#124; ResourceKeys &#124; number | A target locale message key                          |
+| named     | NamedValue                            | A values of named interpolation                      |
+| plural    | number                                | Which plural string to get. 1 returns the first one. |
+
+#### Returns
+
+Translated message
+
+### (key: Key | ResourceKeys | number, named: NamedValue, defaultMsg: string): string;
+
+Locale message translation for named interpolations and plurals
+
+**Signature:**
+
+```typescript
+<Key extends string>(key: Key | ResourceKeys | number, named: NamedValue, defaultMsg: string): string;
+```
+
+**Details**
+
+Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
+
+In this overloaded `t`, for each placeholder x, the locale messages should contain a `{x}` token, and if no translation was found, return a default message.
+
+**See Also**
+
+- [Named interpolation](../../guide/essentials/syntax#named-interpolation)
+
+#### Parameters
+
+| Parameter  | Type                                  | Description                                             |
+| ---------- | ------------------------------------- | ------------------------------------------------------- |
+| key        | Key &#124; ResourceKeys &#124; number | A target locale message key                             |
+| named      | NamedValue                            | A values of named interpolation                         |
+| defaultMsg | string                                | A default message to return if no translation was found |
+
+#### Returns
+
+Translated message
+
+### (key: Key | ResourceKeys | number, named: NamedValue, options: TranslateOptions&lt;Locales&gt;): string;
+
+Locale message translation for named interpolations
+
+**Signature:**
+
+```typescript
+<Key extends string>(key: Key | ResourceKeys | number, named: NamedValue, options: TranslateOptions<Locales>): string;
+```
+
+**Details**
+
+Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
+
+In this overloaded `t`, for each placeholder x, the locale messages should contain a `{x}` token.
+
+You can also suppress the warning, when the translation missing according to the options.
+
+About details of options, see the .
+
+**See Also**
+
+- [Named interpolation](../../guide/essentials/syntax#named-interpolation)
+
+#### Parameters
+
+| Parameter | Type                                  | Description                     |
+| --------- | ------------------------------------- | ------------------------------- |
+| key       | Key &#124; ResourceKeys &#124; number | A target locale message key     |
+| named     | NamedValue                            | A values of named interpolation |
+| options   | TranslateOptions&lt;Locales&gt;       | Additional for translation      |
+
+#### Returns
+
+Translated message
+
+### (key: Key | ResourceKeys | number, plural: number): string;
+
+Locale message translation for plurals
+
+**Signature:**
+
+```typescript
+<Key extends string>(key: Key | ResourceKeys | number, plural: number): string;
+```
+
+**Details**
+
+Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
+
+In this overloaded `t`, return a pluralized translation message.
+
+You can also suppress the warning, when the translation missing according to the options.
+
+**See Also**
+
+- [Pluralization](../../guide/essentials/pluralization)
+
+#### Parameters
+
+| Parameter | Type                                  | Description                                          |
+| --------- | ------------------------------------- | ---------------------------------------------------- |
+| key       | Key &#124; ResourceKeys &#124; number | A target locale message key                          |
+| plural    | number                                | Which plural string to get. 1 returns the first one. |
+
+#### Returns
+
+Translated message
+
+### (key: Key | ResourceKeys | number, plural: number, options: TranslateOptions&lt;Locales&gt;): string;
+
+Locale message translation for plurals
+
+**Signature:**
+
+```typescript
+<Key extends string>(key: Key | ResourceKeys | number, plural: number, options: TranslateOptions<Locales>): string;
+```
+
+**Details**
+
+Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
+
+In this overloaded `t`, return a pluralized translation message.
+
+You can also suppress the warning, when the translation missing according to the options.
+
+About details of options, see the .
+
+**See Also**
+
+- [Pluralization](../../guide/essentials/pluralization)
+
+#### Parameters
+
+| Parameter | Type                                  | Description                                          |
+| --------- | ------------------------------------- | ---------------------------------------------------- |
+| key       | Key &#124; ResourceKeys &#124; number | A target locale message key                          |
+| plural    | number                                | Which plural string to get. 1 returns the first one. |
+| options   | TranslateOptions&lt;Locales&gt;       | Additional for translation                           |
+
+#### Returns
+
+Translated message
+
+### (key: Key | ResourceKeys | number, defaultMsg: string): string;
+
+Locale message translation for missing default message
+
+**Signature:**
+
+```typescript
+<Key extends string>(key: Key | ResourceKeys | number, defaultMsg: string): string;
+```
+
+**Details**
+
+Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
+
+In this overloaded `t`, if no translation was found, return a default message.
+
+You can also suppress the warning, when the translation missing according to the options.
+
+#### Parameters
+
+| Parameter  | Type                                  | Description                                             |
+| ---------- | ------------------------------------- | ------------------------------------------------------- |
+| key        | Key &#124; ResourceKeys &#124; number | A target locale message key                             |
+| defaultMsg | string                                | A default message to return if no translation was found |
+
+#### Returns
+
+Translated message
+
+### (key: Key | ResourceKeys | number, defaultMsg: string, options: TranslateOptions&lt;Locales&gt;): string;
+
+Locale message translation for missing default message
+
+**Signature:**
+
+```typescript
+<Key extends string>(key: Key | ResourceKeys | number, defaultMsg: string, options: TranslateOptions<Locales>): string;
+```
+
+**Details**
+
+Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
+
+In this overloaded `t`, if no translation was found, return a default message.
+
+You can also suppress the warning, when the translation missing according to the options.
+
+About details of options, see the .
+
+#### Parameters
+
+| Parameter  | Type                                  | Description                                             |
+| ---------- | ------------------------------------- | ------------------------------------------------------- |
+| key        | Key &#124; ResourceKeys &#124; number | A target locale message key                             |
+| defaultMsg | string                                | A default message to return if no translation was found |
+| options    | TranslateOptions&lt;Locales&gt;       | Additional for translation                              |
+
+#### Returns
+
+Translated message
+
+### (key: Key | ResourceKeys | number, list: unknown[]): string;
+
+Locale message translation for list interpolations
+
+**Signature:**
+
+```typescript
+<Key extends string>(key: Key | ResourceKeys | number, list: unknown[]): string;
+```
+
+**Details**
+
+Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
+
+In this overloaded `t`, the locale messages should contain a `{0}`, `{1}`, … for each placeholder in the list.
+
+You can also suppress the warning, when the translation missing according to the options.
+
+**See Also**
+
+- [List interpolation](../../guide/essentials/syntax#list-interpolation)
+
+#### Parameters
+
+| Parameter | Type                                  | Description                    |
+| --------- | ------------------------------------- | ------------------------------ |
+| key       | Key &#124; ResourceKeys &#124; number | A target locale message key    |
+| list      | unknown[]                             | A values of list interpolation |
+
+#### Returns
+
+Translated message
+
+### (key: Key | ResourceKeys | number, list: unknown[], plural: number): string;
+
+Locale message translation for list interpolations and plurals
+
+**Signature:**
+
+```typescript
+<Key extends string>(key: Key | ResourceKeys | number, list: unknown[], plural: number): string;
+```
+
+**Details**
+
+Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
+
+In this overloaded `t`, the locale messages should contain a `{0}`, `{1}`, … for each placeholder in the list, and return a pluralized translation message.
+
+**See Also**
+
+- [Pluralization](../../guide/essentials/pluralization)
+- [List interpolation](../../guide/essentials/syntax#list-interpolation)
+
+#### Parameters
+
+| Parameter | Type                                  | Description                                          |
+| --------- | ------------------------------------- | ---------------------------------------------------- |
+| key       | Key &#124; ResourceKeys &#124; number | A target locale message key                          |
+| list      | unknown[]                             | A values of list interpolation                       |
+| plural    | number                                | Which plural string to get. 1 returns the first one. |
+
+#### Returns
+
+Translated message
+
+### (key: Key | ResourceKeys | number, list: unknown[], defaultMsg: string): string;
+
+Locale message translation for list interpolations and missing default message
+
+**Signature:**
+
+```typescript
+<Key extends string>(key: Key | ResourceKeys | number, list: unknown[], defaultMsg: string): string;
+```
+
+**Details**
+
+Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
+
+In this overloaded `t`, the locale messages should contain a `{0}`, `{1}`, … for each placeholder in the list, and if no translation was found, return a default message.
+
+**See Also**
+
+- [List interpolation](../../guide/essentials/syntax#list-interpolation)
+
+#### Parameters
+
+| Parameter  | Type                                  | Description                                             |
+| ---------- | ------------------------------------- | ------------------------------------------------------- |
+| key        | Key &#124; ResourceKeys &#124; number | A target locale message key                             |
+| list       | unknown[]                             | A values of list interpolation                          |
+| defaultMsg | string                                | A default message to return if no translation was found |
+
+#### Returns
+
+Translated message
+
+### (key: Key | ResourceKeys | number, list: unknown[], options: TranslateOptions&lt;Locales&gt;): string;
+
+Locale message translation for list interpolations
+
+**Signature:**
+
+```typescript
+<Key extends string>(key: Key | ResourceKeys | number, list: unknown[], options: TranslateOptions<Locales>): string;
+```
+
+**Details**
+
+Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
+
+In this overloaded `t`, the locale messages should contain a `{0}`, `{1}`, … for each placeholder in the list.
+
+You can also suppress the warning, when the translation missing according to the options.
+
+About details of options, see the .
+
+**See Also**
+
+- [List interpolation](../../guide/essentials/syntax#list-interpolation)
+
+#### Parameters
+
+| Parameter | Type                                  | Description                    |
+| --------- | ------------------------------------- | ------------------------------ |
+| key       | Key &#124; ResourceKeys &#124; number | A target locale message key    |
+| list      | unknown[]                             | A values of list interpolation |
+| options   | TranslateOptions&lt;Locales&gt;       | Additional for translation     |
+
+#### Returns
+
+Translated message
+
+## MissingHandler
+
+**Signature:**
+
+```typescript
+export type MissingHandler = (
+  locale: Locale,
+  key: Path,
+  instance?: ComponentInternalInstance,
+  type?: string
+) => string | void
+```
+
+## useI18n
+
+Use Composition API for Vue I18n
+
+**Signature:**
+
+```typescript
+export declare function useI18n<
+  Schema = DefaultLocaleMessageSchema,
+  Locales = 'en-US',
+  Options extends UseI18nOptions<
+    SchemaParams<Schema, VueMessageType>,
+    LocaleParams<Locales>
+  > = UseI18nOptions<
+    SchemaParams<Schema, VueMessageType>,
+    LocaleParams<Locales>
+  >
+>(
+  options?: Options
+): Composer<
+  NonNullable<Options['messages']>,
+  NonNullable<Options['datetimeFormats']>,
+  NonNullable<Options['numberFormats']>,
+  NonNullable<Options['locale']>
+>
+```
+
+### Type Parameters
+
+| Parameter | Description                                                                   |
+| --------- | ----------------------------------------------------------------------------- |
+| Schema    | The i18n resources (messages, datetimeFormats, numberFormats) schema, default |
+| Locales   | The locales of i18n resource schema, default `en-US`                          |
+
+**Details**
+
+This function is mainly used by `setup`.
+
+If options are specified, Composer instance is created for each component and you can be localized on the component.
+
+If options are not specified, you can be localized using the global Composer.
+
+### Parameters
+
+| Parameter | Type    | Description                                                  |
+| --------- | ------- | ------------------------------------------------------------ |
+| options   | Options | An options, see [UseI18nOptions](composition#usei18noptions) |
+
+### Returns
+
+[Composer](composition#composer) instance
+
+**Examples**
+
+case: Component resource base localization
+
+```html
+<template>
+  <form>
+    <label>{{ t('language') }}</label>
+    <select v-model="locale">
+      <option value="en">en</option>
+      <option value="ja">ja</option>
+    </select>
+  </form>
+  <p>message: {{ t('hello') }}</p>
+</template>
+
+<script>
+  import { useI18n } from 'vue-i18n'
+
+  export default {
+   setup() {
+     const { t, locale } = useI18n({
+       locale: 'ja',
+       messages: {
+         en: { ... },
+         ja: { ... }
+       }
+     })
+     // Something to do ...
+
+     return { ..., t, locale }
+   }
+  }
+</script>
+```
+
+## UseI18nOptions
+
+I18n Options for `useI18n`
+
+**Signature:**
+
+```typescript
+export type UseI18nOptions<
+  Schema extends {
+    message?: unknown
+    datetime?: unknown
+    number?: unknown
+  } = {
+    message: DefaultLocaleMessageSchema
+    datetime: DefaultDateTimeFormatSchema
+    number: DefaultNumberFormatSchema
+  },
+  Locales extends
+    | {
+        messages: unknown
+        datetimeFormats: unknown
+        numberFormats: unknown
+      }
+    | string = Locale,
+  Options extends ComposerOptions<Schema, Locales> = ComposerOptions<
+    Schema,
+    Locales
+  >
+> = ComposerAdditionalOptions & Options
+```
+
+**Details**
+
+`UseI18nOptions` is inherited [ComposerAdditionalOptions](composition#composeradditionaloptions) and [ComposerOptions](composition#composeroptions), so you can specify these options.
+
+**See Also**
+
+- [useI18n](composition#usei18n)
+
+## VueMessageType
+
+**Signature:**
+
+```typescript
+export type VueMessageType = string | ResourceNode | VNode
+```
diff --git a/v11/directive.md b/v11/directive.md
new file mode 100644
index 000000000..dab690fad
--- /dev/null
+++ b/v11/directive.md
@@ -0,0 +1 @@
+# Directives
diff --git a/v11/general.md b/v11/general.md
new file mode 100644
index 000000000..6d440cfd1
--- /dev/null
+++ b/v11/general.md
@@ -0,0 +1,1313 @@
+# General
+
+## createI18n
+
+Vue I18n factory
+
+**Signature:**
+
+```typescript
+export declare function createI18n<
+  Schema extends object = DefaultLocaleMessageSchema,
+  Locales extends string | object = 'en-US',
+  Options extends I18nOptions<
+    SchemaParams<Schema, VueMessageType>,
+    LocaleParams<Locales>
+  > = I18nOptions<SchemaParams<Schema, VueMessageType>, LocaleParams<Locales>>,
+  Messages extends Record<string, unknown> = NonNullable<
+    Options['messages']
+  > extends Record<string, unknown>
+    ? NonNullable<Options['messages']>
+    : {},
+  DateTimeFormats extends Record<string, unknown> = NonNullable<
+    Options['datetimeFormats']
+  > extends Record<string, unknown>
+    ? NonNullable<Options['datetimeFormats']>
+    : {},
+  NumberFormats extends Record<string, unknown> = NonNullable<
+    Options['numberFormats']
+  > extends Record<string, unknown>
+    ? NonNullable<Options['numberFormats']>
+    : {},
+  OptionLocale = Options['locale'] extends string ? Options['locale'] : Locale
+>(
+  options: Options
+): I18n<Messages, DateTimeFormats, NumberFormats, OptionLocale>
+```
+
+### Type Parameters
+
+| Parameter | Description                                                                   |
+| --------- | ----------------------------------------------------------------------------- |
+| Schema    | The i18n resources (messages, datetimeFormats, numberFormats) schema, default |
+| Locales   | The locales of i18n resource schema, default `en-US`                          |
+
+**See Also**
+
+- [Getting Started](../../guide/essentials/started)
+- [Composition API](../../guide/advanced/composition)
+
+### Parameters
+
+| Parameter | Type    | Description                                            |
+| --------- | ------- | ------------------------------------------------------ |
+| options   | Options | An options, see the [I18nOptions](general#i18noptions) |
+
+### Returns
+
+[I18n](general#i18n) instance
+
+**Examples**
+
+```js
+import { createApp } from 'vue'
+import { createI18n, useI18n } from 'vue-i18n'
+
+// call with I18n option
+const i18n = createI18n({
+  locale: 'ja',
+  messages: {
+    en: { ... },
+    ja: { ... }
+  }
+})
+
+const App = {
+  setup() {
+    // ...
+    const { t } = useI18n({ ... })
+    return { ... , t }
+  }
+}
+
+const app = createApp(App)
+
+// install!
+app.use(i18n)
+app.mount('#app')
+```
+
+## DefineDateTimeFormat
+
+The type definition of datetime format
+
+**Signature:**
+
+```typescript
+export interface DefineDateTimeFormat extends DateTimeFormat
+```
+
+**Details**
+
+The typealias is used to strictly define the type of the Datetime format.
+
+The type defined by this can be used in the global scope.
+
+**Examples**
+
+```ts
+// type.d.ts (`.d.ts` file at your app)
+import { DefineDateTimeFormat } from 'vue-i18n'
+
+declare module 'vue-i18n' {
+  export interface DefineDateTimeFormat {
+    short: {
+      hour: 'numeric'
+      timezone: string
+    }
+  }
+}
+```
+
+## DefineLocaleMessage
+
+The type definition of Locale Message
+
+**Signature:**
+
+```typescript
+export interface DefineLocaleMessage extends LocaleMessage<VueMessageType>
+```
+
+**Details**
+
+The typealias is used to strictly define the type of the Locale message.
+
+The type defined by this can be used in the global scope.
+
+**Examples**
+
+```ts
+// type.d.ts (`.d.ts` file at your app)
+import { DefineLocaleMessage } from 'vue-i18n'
+
+declare module 'vue-i18n' {
+  export interface DefineLocaleMessage {
+    title: string
+    menu: {
+      login: string
+    }
+  }
+}
+```
+
+## DefineNumberFormat
+
+The type definition of number format
+
+**Signature:**
+
+```typescript
+export interface DefineNumberFormat extends NumberFormat
+```
+
+**Details**
+
+The typealias is used to strictly define the type of the Number format.
+
+The type defined by this can be used in the global scope.
+
+**Examples**
+
+```ts
+// type.d.ts (`.d.ts` file at your app)
+import { DefineNumberFormat } from 'vue-i18n'
+
+declare module 'vue-i18n' {
+  export interface DefineNumberFormat {
+    currency: {
+      style: 'currency'
+      currencyDisplay: 'symbol'
+      currency: string
+    }
+  }
+}
+```
+
+## ExportedGlobalComposer
+
+Exported global composer instance
+
+**Signature:**
+
+```typescript
+export interface ExportedGlobalComposer
+```
+
+**Details**
+
+This interface is the [global composer](general#global) that is provided interface that is injected into each component with `app.config.globalProperties`.
+
+### availableLocales
+
+Available locales
+
+**Signature:**
+
+```typescript
+readonly availableLocales: Locale[];
+```
+
+**Details**
+
+This property is proxy-like property for `Composer#availableLocales`. About details, see the [Composer#availableLocales](composition#availablelocales)
+
+### fallbackLocale
+
+Fallback locale
+
+**Signature:**
+
+```typescript
+fallbackLocale: FallbackLocale
+```
+
+**Details**
+
+This property is proxy-like property for `Composer#fallbackLocale`. About details, see the [Composer#fallbackLocale](composition#fallbacklocale)
+
+### locale
+
+Locale
+
+**Signature:**
+
+```typescript
+locale: Locale
+```
+
+**Details**
+
+This property is proxy-like property for `Composer#locale`. About details, see the [Composer#locale](composition#locale)
+
+## I18n
+
+I18n instance
+
+**Signature:**
+
+```typescript
+export interface I18n<Messages extends Record<string, unknown> = {}, DateTimeFormats extends Record<string, unknown> = {}, NumberFormats extends Record<string, unknown> = {}, OptionLocale = Locale>
+```
+
+**Details**
+
+The instance required for installation as the Vue plugin
+
+### global
+
+The property accessible to the global Composer instance
+
+An instance of this property is **global scope\***.
+
+**Signature:**
+
+```typescript
+readonly global: Composer<Messages, DateTimeFormats, NumberFormats, OptionLocale>;
+```
+
+### dispose()
+
+Release global scope resource
+
+**Signature:**
+
+```typescript
+dispose(): void;
+```
+
+#### Parameters
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+
+### install(app, options)
+
+Install entry point
+
+**Signature:**
+
+```typescript
+install(app: App, ...options: unknown[]): void;
+```
+
+#### Parameters
+
+| Parameter | Type      | Description               |
+| --------- | --------- | ------------------------- |
+| app       | App       | A target Vue app instance |
+| options   | unknown[] | An install options        |
+
+## I18nAdditionalOptions
+
+I18n Additional Options
+
+**Signature:**
+
+```typescript
+export interface I18nAdditionalOptions
+```
+
+**Details**
+
+Specific options for
+
+### globalInjection
+
+Whether to inject global properties & functions into for each component.
+
+**Signature:**
+
+```typescript
+globalInjection?: boolean;
+```
+
+**Details**
+
+If set to `true`, then properties and methods prefixed with `$` are injected into Vue Component.
+
+**Default Value**
+
+`true`
+
+**See Also**
+
+- [Implicit with injected properties and functions](../../guide/advanced/composition#implicit-with-injected-properties-and-functions)
+- [ComponentCustomProperties](injection#componentcustomproperties)
+
+## I18nOptions
+
+I18n Options for `createI18n`
+
+**Signature:**
+
+```typescript
+export type I18nOptions<
+  Schema extends {
+    message?: unknown
+    datetime?: unknown
+    number?: unknown
+  } = {
+    message: DefaultLocaleMessageSchema
+    datetime: DefaultDateTimeFormatSchema
+    number: DefaultNumberFormatSchema
+  },
+  Locales extends
+    | {
+        messages: unknown
+        datetimeFormats: unknown
+        numberFormats: unknown
+      }
+    | string = Locale,
+  Options = ComposerOptions<Schema, Locales>
+> = I18nAdditionalOptions & Options
+```
+
+## I18nPluginOptions
+
+Vue I18n plugin options
+
+**Signature:**
+
+```typescript
+export interface I18nPluginOptions
+```
+
+**Details**
+
+An options specified when installing Vue I18n as Vue plugin with using `app.use`.
+
+### globalInstall
+
+Whether to globally install the components that is offered by Vue I18n
+
+**Signature:**
+
+```typescript
+globalInstall?: boolean;
+```
+
+**Details**
+
+If this option is enabled, the components will be installed globally at `app.use` time.
+
+If you want to install manually in the `import` syntax, you can set it to `false` to install when needed.
+
+**Default Value**
+
+`true`
+
+## I18nScope
+
+I18n Scope
+
+**Signature:**
+
+```typescript
+export type I18nScope = 'local' | 'parent' | 'global'
+```
+
+**See Also**
+
+- [ComposerAdditionalOptions#useScope](composition#usescope)
+- [useI18n](composition#usei18n)
+
+## VERSION
+
+Vue I18n Version
+
+**Signature:**
+
+```typescript
+VERSION: string
+```
+
+**Details**
+
+Semver format. Same format as the package.json `version` field.
+
+## DateTimeOptions
+
+DateTime options
+
+**Signature:**
+
+```typescript
+export interface DateTimeOptions<Key = string, Locales = Locale> extends Intl.DateTimeFormatOptions, LocaleOptions<Locales>
+```
+
+**Details**
+
+Options for Datetime formatting API
+
+### fallbackWarn
+
+**Signature:**
+
+```typescript
+fallbackWarn?: boolean;
+```
+
+**Details**
+
+Whether do resolve on format keys when your language lacks a formatting for a key
+
+### key
+
+**Signature:**
+
+```typescript
+key?: Key;
+```
+
+**Details**
+
+The target format key
+
+### missingWarn
+
+**Signature:**
+
+```typescript
+missingWarn?: boolean;
+```
+
+**Details**
+
+Whether suppress warnings outputted when localization fails
+
+### part
+
+**Signature:**
+
+```typescript
+part?: boolean;
+```
+
+**Details**
+
+Whether to use [Intel.DateTimeFormat#formatToParts](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/formatToParts)
+
+## DefineCoreLocaleMessage
+
+The type definition of Locale Message for `@intlify/core-base` package
+
+**Signature:**
+
+```typescript
+export interface DefineCoreLocaleMessage extends LocaleMessage<string>
+```
+
+**Details**
+
+The typealias is used to strictly define the type of the Locale message.
+
+**Examples**
+
+```ts
+// type.d.ts (`.d.ts` file at your app)
+import { DefineCoreLocaleMessage } from '@intlify/core-base'
+
+declare module '@intlify/core-base' {
+  export interface DefineCoreLocaleMessage {
+    title: string
+    menu: {
+      login: string
+    }
+  }
+}
+```
+
+## FallbackLocale
+
+**Signature:**
+
+```typescript
+export type FallbackLocale =
+  | Locale
+  | Locale[]
+  | {
+      [locale in string]: Locale[]
+    }
+  | false
+```
+
+## fallbackWithLocaleChain
+
+Fallback with locale chain
+
+**Signature:**
+
+```typescript
+export declare function fallbackWithLocaleChain<Message = string>(
+  ctx: CoreContext<Message>,
+  fallback: FallbackLocale,
+  start: Locale
+): Locale[]
+```
+
+**Details**
+
+A fallback locale function implemented with a fallback chain algorithm. It's used in VueI18n as default.
+
+**See Also**
+
+- [Fallbacking](../../guide/essentials/fallback)
+
+### Parameters
+
+| Parameter | Type                       | Description                                 |
+| --------- | -------------------------- | ------------------------------------------- |
+| ctx       | CoreContext&lt;Message&gt; | A [context](#corecontext)                   |
+| fallback  | FallbackLocale             | A [fallback locale](general#fallbacklocale) |
+| start     | Locale                     | A starting [locale](general#locale)         |
+
+### Returns
+
+Fallback locales
+
+## fallbackWithSimple
+
+Fallback with simple implemenation
+
+**Signature:**
+
+```typescript
+export declare function fallbackWithSimple<Message = string>(
+  ctx: CoreContext<Message>,
+  fallback: FallbackLocale,
+  start: Locale
+): Locale[]
+```
+
+**Details**
+
+A fallback locale function implemented with a simple fallback algorithm.
+
+Basically, it returns the value as specified in the `fallbackLocale` props, and is processed with the fallback inside intlify.
+
+### Parameters
+
+| Parameter | Type                       | Description                                 |
+| --------- | -------------------------- | ------------------------------------------- |
+| ctx       | CoreContext&lt;Message&gt; | A [context](#corecontext)                   |
+| fallback  | FallbackLocale             | A [fallback locale](general#fallbacklocale) |
+| start     | Locale                     | A starting [locale](general#locale)         |
+
+### Returns
+
+Fallback locales
+
+## LinkedModifiers
+
+**Signature:**
+
+```typescript
+export type LinkedModifiers<T = string> = {
+  [key: string]: LinkedModify<T>
+}
+```
+
+## Locale
+
+**Signature:**
+
+```typescript
+export type Locale =
+  IsNever<GeneratedLocale> extends true ? string : GeneratedLocale
+```
+
+## LocaleDetector
+
+**Signature:**
+
+```typescript
+export interface LocaleDetector<Args extends any[] = any[]>
+```
+
+### resolvedOnce
+
+### (...args: Args): Locale | Promise&lt;Locale&gt;;
+
+## LocaleFallbacker
+
+The locale fallbacker
+
+**Signature:**
+
+```typescript
+export type LocaleFallbacker = <Message = string>(
+  ctx: CoreContext<Message>,
+  fallback: FallbackLocale,
+  start: Locale
+) => Locale[]
+```
+
+## LocaleMessage
+
+**Signature:**
+
+```typescript
+export type LocaleMessage<Message = string> = Record<
+  string,
+  LocaleMessageValue<Message>
+>
+```
+
+## LocaleMessageDictionary
+
+**Signature:**
+
+```typescript
+export type LocaleMessageDictionary<T, Message = string> = {
+  [K in keyof T]: LocaleMessageType<T[K], Message>
+}
+```
+
+## LocaleMessages
+
+**Signature:**
+
+```typescript
+export type LocaleMessages<
+  Schema,
+  Locales = Locale,
+  Message = string
+> = LocaleRecord<UnionToTuple<Locales>, Schema>
+```
+
+## LocaleMessageType
+
+**Signature:**
+
+```typescript
+export type LocaleMessageType<T, Message = string> = T extends string
+  ? string
+  : T extends () => Promise<infer P>
+    ? LocaleMessageDictionary<P, Message>
+    : T extends (...args: infer Arguments) => any
+      ? (...args: Arguments) => ReturnType<T>
+      : T extends Record<string, unknown>
+        ? LocaleMessageDictionary<T, Message>
+        : T extends Array<T>
+          ? {
+              [K in keyof T]: T[K]
+            }
+          : T
+```
+
+## LocaleMessageValue
+
+**Signature:**
+
+```typescript
+export type LocaleMessageValue<Message = string> =
+  | LocaleMessageDictionary<any, Message>
+  | string
+```
+
+## LocaleOptions
+
+**Signature:**
+
+```typescript
+export interface LocaleOptions<Locales = Locale>
+```
+
+### locale
+
+**Signature:**
+
+```typescript
+locale?: Locales | LocaleDetector;
+```
+
+**Details**
+
+The locale of localization
+
+## MessageCompiler
+
+The message compiler
+
+**Signature:**
+
+```typescript
+export type MessageCompiler<
+  Message = string,
+  MessageSource = string | ResourceNode
+> = (
+  message: MessageSource,
+  context: MessageCompilerContext
+) => MessageFunction<Message>
+```
+
+## MessageCompilerContext
+
+The context that will pass the message compiler.
+
+**Signature:**
+
+```typescript
+export type MessageCompilerContext = Pick<
+  CompileOptions,
+  'onError' | 'onCacheKey'
+> & {
+  warnHtmlMessage?: boolean
+  key: string
+  locale: Locale
+}
+```
+
+## MessageContext
+
+The message context.
+
+**Signature:**
+
+```typescript
+export interface MessageContext<T = string>
+```
+
+### type
+
+The message type to be handled by the message function.
+
+**Signature:**
+
+```typescript
+type: string
+```
+
+**Details**
+
+Usually `text`, you need to return **string** in message function.
+
+### values
+
+The message values.
+
+**Signature:**
+
+```typescript
+values: Record<string, unknown>
+```
+
+**Details**
+
+The message values are the argument values passed from translation function, such as `$t`, `t`, or `translate`.
+
+**Examples**
+
+vue-i18n `$t` (or `t`) case:
+
+```html
+<p>{{ $t('greeting', { name: 'DIO' }) }}</p>
+<!-- `{ name: 'DIO' }` is message values -->
+```
+
+`@intlify/core` (`@intlify/core-base`) `translate` case:
+
+```js
+translate(context, 'foo.bar', ['dio']) // `['dio']` is message values
+```
+
+### linked(key, modifier)
+
+Resolve linked message.
+
+**Signature:**
+
+```typescript
+linked(key: Path, modifier?: string): MessageType<T>;
+```
+
+#### Parameters
+
+| Parameter | Type   | Description   |
+| --------- | ------ | ------------- |
+| key       | Path   | A message key |
+| modifier  | string | A modifier    |
+
+#### Returns
+
+A resolve message.
+
+### linked(key, modifier, type)
+
+Overloaded `linked`
+
+**Signature:**
+
+```typescript
+linked(key: Path, modifier?: string, type?: string): MessageType<T>;
+```
+
+#### Parameters
+
+| Parameter | Type   | Description    |
+| --------- | ------ | -------------- |
+| key       | Path   | A message key  |
+| modifier  | string | A modifier     |
+| type      | string | A message type |
+
+#### Returns
+
+A resolve message.
+
+### linked(key, optoins)
+
+Overloaded `linked`
+
+**Signature:**
+
+```typescript
+linked(key: Path, optoins?: LinkedOptions): MessageType<T>;
+```
+
+#### Parameters
+
+| Parameter | Type          | Description                         |
+| --------- | ------------- | ----------------------------------- |
+| key       | Path          | A message key                       |
+| optoins   | LinkedOptions | An [linked options](#linkedoptions) |
+
+#### Returns
+
+A resolve message.
+
+### list(index)
+
+Resolve message value from list.
+
+**Signature:**
+
+```typescript
+list(index: number): unknown;
+```
+
+#### Parameters
+
+| Parameter | Type   | Description                 |
+| --------- | ------ | --------------------------- |
+| index     | number | An index of message values. |
+
+#### Returns
+
+A resolved message value.
+
+**Examples**
+
+```js
+const messages = {
+  en: {
+    greeting: ({ list }) => `hello, ${list(0)}!`
+  }
+}
+```
+
+### named(key)
+
+Resolve message value from named.
+
+**Signature:**
+
+```typescript
+named(key: string): unknown;
+```
+
+#### Parameters
+
+| Parameter | Type   | Description             |
+| --------- | ------ | ----------------------- |
+| key       | string | A key of message value. |
+
+#### Returns
+
+A resolved message value.
+
+**Examples**
+
+```js
+const messages = {
+  en: {
+    greeting: ({ named }) => `hello, ${named('name')}!`
+  }
+}
+```
+
+### plural(messages)
+
+Resolve message with plural index.
+
+**Signature:**
+
+```typescript
+plural(messages: T[]): T;
+```
+
+**Details**
+
+That's resolved with plural index with translation function.
+
+#### Parameters
+
+| Parameter | Type | Description                                                                 |
+| --------- | ---- | --------------------------------------------------------------------------- |
+| messages  | T[]  | the messages, that is resolved with plural index with translation function. |
+
+#### Returns
+
+A resolved message.
+
+**Examples**
+
+```js
+const messages = {
+  en: {
+    car: ({ plural }) => plural(['car', 'cars']),
+    apple: ({ plural, named }) =>
+      plural(['no apples', 'one apple', `${named('count')} apples`])
+  }
+}
+```
+
+## MessageFunction
+
+The Message Function.
+
+**Signature:**
+
+```typescript
+export type MessageFunction<T = string> =
+  | MessageFunctionCallable
+  | MessageFunctionInternal<T>
+```
+
+## MessageFunctionReturn
+
+**Signature:**
+
+```typescript
+export type MessageFunctionReturn<T = string> = T extends string
+  ? MessageType<T>
+  : MessageType<T>[]
+```
+
+## MessageResolver
+
+**Signature:**
+
+```typescript
+export type MessageResolver = (obj: unknown, path: Path) => PathValue
+```
+
+## NamedValue
+
+**Signature:**
+
+```typescript
+export type NamedValue<T = {}> = T & Record<string, unknown>
+```
+
+## NumberOptions
+
+Number Options
+
+**Signature:**
+
+```typescript
+export interface NumberOptions<Key = string, Locales = Locale> extends Intl.NumberFormatOptions, LocaleOptions<Locales>
+```
+
+**Details**
+
+Options for Number formatting API
+
+### fallbackWarn
+
+**Signature:**
+
+```typescript
+fallbackWarn?: boolean;
+```
+
+**Details**
+
+Whether do resolve on format keys when your language lacks a formatting for a key
+
+### key
+
+**Signature:**
+
+```typescript
+key?: Key;
+```
+
+**Details**
+
+The target format key
+
+### missingWarn
+
+**Signature:**
+
+```typescript
+missingWarn?: boolean;
+```
+
+**Details**
+
+Whether suppress warnings outputted when localization fails
+
+### part
+
+**Signature:**
+
+```typescript
+part?: boolean;
+```
+
+**Details**
+
+Whether to use [Intel.NumberFormat#formatToParts](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/formatToParts)
+
+## Path
+
+**Signature:**
+
+```typescript
+export type Path = string
+```
+
+## PathValue
+
+**Signature:**
+
+```typescript
+export type PathValue =
+  | string
+  | number
+  | boolean
+  | Function
+  | null
+  | {
+      [key: string]: PathValue
+    }
+  | PathValue[]
+```
+
+## PluralizationRules
+
+**Signature:**
+
+```typescript
+export type PluralizationRules = {
+  [locale: string]: PluralizationRule
+}
+```
+
+## PostTranslationHandler
+
+**Signature:**
+
+```typescript
+export type PostTranslationHandler<Message = string> = (
+  translated: MessageFunctionReturn<Message>,
+  key: string
+) => MessageFunctionReturn<Message>
+```
+
+## registerLocaleFallbacker
+
+Register the locale fallbacker
+
+**Signature:**
+
+```typescript
+export declare function registerLocaleFallbacker(
+  fallbacker: LocaleFallbacker
+): void
+```
+
+### Parameters
+
+| Parameter  | Type             | Description                                             |
+| ---------- | ---------------- | ------------------------------------------------------- |
+| fallbacker | LocaleFallbacker | A [LocaleFallbacker](general#localefallbacker) function |
+
+## registerMessageResolver
+
+Register the message resolver
+
+**Signature:**
+
+```typescript
+export declare function registerMessageResolver(resolver: MessageResolver): void
+```
+
+### Parameters
+
+| Parameter | Type            | Description                                           |
+| --------- | --------------- | ----------------------------------------------------- |
+| resolver  | MessageResolver | A [MessageResolver](general#messageresolver) function |
+
+## resolveValue
+
+message resolver
+
+**Signature:**
+
+```typescript
+export declare function resolveValue(obj: unknown, path: Path): PathValue
+```
+
+**Details**
+
+Resolves messages. messages with a hierarchical structure such as objects can be resolved. This resolver is used in VueI18n as default.
+
+### Parameters
+
+| Parameter | Type    | Description                                            |
+| --------- | ------- | ------------------------------------------------------ |
+| obj       | unknown | A target object to be resolved with path               |
+| path      | Path    | A [path](general#path) to resolve the value of message |
+
+### Returns
+
+A resolved [path value](general#pathvalue)
+
+## resolveWithKeyValue
+
+key-value message resolver
+
+**Signature:**
+
+```typescript
+export declare function resolveWithKeyValue(obj: unknown, path: Path): PathValue
+```
+
+**Details**
+
+Resolves messages with the key-value structure. Note that messages with a hierarchical structure such as objects cannot be resolved
+
+### Parameters
+
+| Parameter | Type    | Description                                            |
+| --------- | ------- | ------------------------------------------------------ |
+| obj       | unknown | A target object to be resolved with path               |
+| path      | Path    | A [path](general#path) to resolve the value of message |
+
+### Returns
+
+A resolved [path value](general#pathvalue)
+
+## TranslateOptions
+
+Translate Options
+
+**Signature:**
+
+```typescript
+export interface TranslateOptions<Locales = Locale> extends LocaleOptions<Locales>
+```
+
+**Details**
+
+Options for Translation API
+
+### default
+
+**Signature:**
+
+```typescript
+default?: string | boolean;
+```
+
+**Details**
+
+Default message when is occurred translation missing
+
+### escapeParameter
+
+**Signature:**
+
+```typescript
+escapeParameter?: boolean;
+```
+
+**Details**
+
+Whether do escape parameter for list or named interpolation values
+
+### fallbackWarn
+
+**Signature:**
+
+```typescript
+fallbackWarn?: boolean;
+```
+
+**Details**
+
+Whether do template interpolation on translation keys when your language lacks a translation for a key
+
+### list
+
+**Signature:**
+
+```typescript
+list?: unknown[];
+```
+
+**Details**
+
+List interpolation
+
+### missingWarn
+
+**Signature:**
+
+```typescript
+missingWarn?: boolean;
+```
+
+**Details**
+
+Whether suppress warnings outputted when localization fails
+
+### named
+
+**Signature:**
+
+```typescript
+named?: NamedValue;
+```
+
+**Details**
+
+Named interpolation
+
+### plural
+
+**Signature:**
+
+```typescript
+plural?: number;
+```
+
+**Details**
+
+Plulralzation choice number
+
+### resolvedMessage
+
+**Signature:**
+
+```typescript
+resolvedMessage?: boolean;
+```
+
+**Details**
+
+Whether the message has been resolved
diff --git a/v11/legacy.md b/v11/legacy.md
new file mode 100644
index 000000000..d10d85e5d
--- /dev/null
+++ b/v11/legacy.md
@@ -0,0 +1 @@
+# Legacy API

From 8dbd0db5dfdb0073fa5b597aa3853a1e0fc9200e Mon Sep 17 00:00:00 2001
From: kazuya kawaguchi <kawakazu80@gmail.com>
Date: Tue, 17 Jun 2025 00:28:38 +0900
Subject: [PATCH 2/4] chore: wrong commits

---
 v11/component.md | 1 -
 v11/directive.md | 1 -
 v11/legacy.md    | 1 -
 3 files changed, 3 deletions(-)
 delete mode 100644 v11/component.md
 delete mode 100644 v11/directive.md
 delete mode 100644 v11/legacy.md

diff --git a/v11/component.md b/v11/component.md
deleted file mode 100644
index 0eac4eb52..000000000
--- a/v11/component.md
+++ /dev/null
@@ -1 +0,0 @@
-# Components
diff --git a/v11/directive.md b/v11/directive.md
deleted file mode 100644
index dab690fad..000000000
--- a/v11/directive.md
+++ /dev/null
@@ -1 +0,0 @@
-# Directives
diff --git a/v11/legacy.md b/v11/legacy.md
deleted file mode 100644
index d10d85e5d..000000000
--- a/v11/legacy.md
+++ /dev/null
@@ -1 +0,0 @@
-# Legacy API

From 2cfb55978b938426e39a9154a9d53dc82867d26a Mon Sep 17 00:00:00 2001
From: kazuya kawaguchi <kawakazu80@gmail.com>
Date: Tue, 17 Jun 2025 00:29:25 +0900
Subject: [PATCH 3/4] chore: remove more wrong commits

---
 v11/composition.md | 2338 --------------------------------------------
 v11/general.md     | 1313 -------------------------
 2 files changed, 3651 deletions(-)
 delete mode 100644 v11/composition.md
 delete mode 100644 v11/general.md

diff --git a/v11/composition.md b/v11/composition.md
deleted file mode 100644
index e0457b759..000000000
--- a/v11/composition.md
+++ /dev/null
@@ -1,2338 +0,0 @@
-# Composition API
-
-## Composer
-
-Composer interfaces
-
-**Signature:**
-
-```typescript
-export interface Composer<Messages extends Record<string, any> = {}, DateTimeFormats extends Record<string, any> = {}, NumberFormats extends Record<string, any> = {}, OptionLocale = Locale, ResourceLocales = PickupLocales<NonNullable<Messages>> | PickupLocales<NonNullable<DateTimeFormats>> | PickupLocales<NonNullable<NumberFormats>>, Locales = Locale extends GeneratedLocale ? GeneratedLocale : OptionLocale extends Locale ? IsNever<ResourceLocales> extends true ? Locale : ResourceLocales : OptionLocale | ResourceLocales> extends ComposerCustom
-```
-
-**Details**
-
-This is the interface for being used for Vue 3 Composition API.
-
-### availableLocales
-
-**Signature:**
-
-```typescript
-readonly availableLocales: ComputedRef<Locales[]>;
-```
-
-**Details**
-
-The list of available locales in `messages` in lexical order.
-
-### d
-
-Datetime formatting
-
-**Signature:**
-
-```typescript
-d: ComposerDateTimeFormatting<
-  DateTimeFormats,
-  Locales,
-  RemoveIndexSignature<{
-    [K in keyof DefineDateTimeFormat]: DefineDateTimeFormat[K]
-  }>
->
-```
-
-**Details**
-
-About details functions, See the [ComposerDateTimeFormatting](composition#composerdatetimeformatting)
-
-### datetimeFormats
-
-**Signature:**
-
-```typescript
-readonly datetimeFormats: ComputedRef<{
-        [K in keyof DateTimeFormats]: DateTimeFormats[K];
-    }>;
-```
-
-**Details**
-
-The datetime formats of localization.
-
-**See Also**
-
-- [Datetime Formatting](../../guide/essentials/datetime)
-
-### escapeParameter
-
-**Signature:**
-
-```typescript
-escapeParameter: boolean
-```
-
-**Details**
-
-Whether interpolation parameters are escaped before the message is translated.
-
-**See Also**
-
-- [HTML Message](../../guide/essentials/syntax#html-message)
-
-### fallbackFormat
-
-**Signature:**
-
-```typescript
-fallbackFormat: boolean
-```
-
-**Details**
-
-Whether suppress warnings when falling back to either `fallbackLocale` or root.
-
-**See Also**
-
-- [Fallbacking](../../guide/essentials/fallback)
-
-### fallbackLocale
-
-**Signature:**
-
-```typescript
-fallbackLocale: WritableComputedRef<FallbackLocales<Locales>>
-```
-
-**Details**
-
-The current fallback locales this Composer instance is using.
-
-**See Also**
-
-- [Fallbacking](../../guide/essentials/fallback)
-
-### fallbackRoot
-
-**Signature:**
-
-```typescript
-fallbackRoot: boolean
-```
-
-**Details**
-
-Whether to fall back to root level (global scope) localization when localization fails.
-
-**See Also**
-
-- [Fallbacking](../../guide/essentials/fallback)
-
-### fallbackWarn
-
-**Signature:**
-
-```typescript
-fallbackWarn: boolean | RegExp
-```
-
-**Details**
-
-Whether suppress fall back warnings when localization fails.
-
-**See Also**
-
-- [Fallbacking](../../guide/essentials/fallback)
-
-### id
-
-**Signature:**
-
-```typescript
-id: number
-```
-
-**Details**
-
-Instance ID.
-
-### inheritLocale
-
-**Signature:**
-
-```typescript
-inheritLocale: boolean
-```
-
-**Details**
-
-Whether inherit the root level locale to the component localization locale.
-
-**See Also**
-
-- [Local Scope](../../guide/essentials/scope#local-scope-2)
-
-### isGlobal
-
-**Signature:**
-
-```typescript
-readonly isGlobal: boolean;
-```
-
-**Details**
-
-Whether this composer instance is global or not
-
-### locale
-
-**Signature:**
-
-```typescript
-locale: WritableComputedRef<Locales>
-```
-
-**Details**
-
-The current locale this Composer instance is using.
-
-If the locale contains a territory and a dialect, this locale contains an implicit fallback.
-
-**See Also**
-
-- [Scope and Locale Changing](../../guide/essentials/scope)
-
-### messages
-
-**Signature:**
-
-```typescript
-readonly messages: ComputedRef<{
-        [K in keyof Messages]: Messages[K];
-    }>;
-```
-
-**Details**
-
-The locale messages of localization.
-
-**See Also**
-
-- [Getting Started](../../guide/essentials/started)
-
-### missingWarn
-
-**Signature:**
-
-```typescript
-missingWarn: boolean | RegExp
-```
-
-**Details**
-
-Whether suppress warnings outputted when localization fails.
-
-**See Also**
-
-- [Fallbacking](../../guide/essentials/fallback)
-
-### modifiers
-
-**Signature:**
-
-```typescript
-readonly modifiers: LinkedModifiers<VueMessageType>;
-```
-
-**Details**
-
-Custom Modifiers for linked messages.
-
-**See Also**
-
-- [Custom Modifiers](../../guide/essentials/syntax#custom-modifiers)
-
-### n
-
-Number Formatting
-
-**Signature:**
-
-```typescript
-n: ComposerNumberFormatting<
-  NumberFormats,
-  Locales,
-  RemoveIndexSignature<{
-    [K in keyof DefineNumberFormat]: DefineNumberFormat[K]
-  }>
->
-```
-
-**Details**
-
-About details functions, See the [ComposerNumberFormatting](composition#composernumberformatting)
-
-### numberFormats
-
-**Signature:**
-
-```typescript
-readonly numberFormats: ComputedRef<{
-        [K in keyof NumberFormats]: NumberFormats[K];
-    }>;
-```
-
-**Details**
-
-The number formats of localization.
-
-**See Also**
-
-- [Number Formatting](../../guide/essentials/number)
-
-### pluralRules
-
-**Signature:**
-
-```typescript
-readonly pluralRules: PluralizationRules;
-```
-
-**Details**
-
-A set of rules for word pluralization
-
-**See Also**
-
-- [Custom Pluralization](../../guide/essentials/pluralization#custom-pluralization)
-
-### rt
-
-Resolve locale message translation
-
-**Signature:**
-
-```typescript
-rt: ComposerResolveLocaleMessageTranslation<Locales>
-```
-
-**Details**
-
-About details functions, See the [ComposerResolveLocaleMessageTranslation](composition#composerresolvelocalemessagetranslation)
-
-### t
-
-Locale message translation
-
-**Signature:**
-
-```typescript
-t: ComposerTranslation<
-  Messages,
-  Locales,
-  RemoveIndexSignature<{
-    [K in keyof DefineLocaleMessage]: DefineLocaleMessage[K]
-  }>
->
-```
-
-**Details**
-
-About details functions, See the [ComposerTranslation](composition#composertranslation)
-
-### warnHtmlMessage
-
-**Signature:**
-
-```typescript
-warnHtmlMessage: boolean
-```
-
-**Details**
-
-Whether to allow the use locale messages of HTML formatting.
-
-If you set `false`, will check the locale messages on the Composer instance.
-
-If you are specified `true`, a warning will be output at console.
-
-**See Also**
-
-- [HTML Message](../../guide/essentials/syntax#html-message)
-- [Change `warnHtmlInMessage` option default value](../../guide/migration/breaking#change-warnhtmlinmessage-option-default-value)
-
-### getDateTimeFormat(locale)
-
-Get datetime format
-
-**Signature:**
-
-```typescript
-getDateTimeFormat<DateTimeSchema extends Record<string, any> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<DateTimeFormats>> = PickupLocales<NonNullable<DateTimeFormats>>, Return = IsNever<DateTimeSchema> extends true ? IsEmptyObject<DateTimeFormats> extends true ? RemoveIndexSignature<{
-        [K in keyof DefineDateTimeFormat]: DefineDateTimeFormat[K];
-    }> : NonNullable<DateTimeFormats>[Locale] : DateTimeSchema>(locale: LocaleSchema | Locale): Return;
-```
-
-#### Type Parameters
-
-| Parameter      | Description                                 |
-| -------------- | ------------------------------------------- |
-| DateTimeSchema | The datetime format schema, default `never` |
-
-**Details**
-
-get datetime format from Composer instance [datetimeFormats](composition#datetimeformats).
-
-#### Parameters
-
-| Parameter | Type                       | Description     |
-| --------- | -------------------------- | --------------- |
-| locale    | LocaleSchema &#124; Locale | A target locale |
-
-#### Returns
-
-Datetime format
-
-### getLocaleMessage(locale)
-
-Get locale message
-
-**Signature:**
-
-```typescript
-getLocaleMessage<MessageSchema extends LocaleMessage<VueMessageType> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<Messages>> = PickupLocales<NonNullable<Messages>>, Return = IsNever<MessageSchema> extends true ? IsEmptyObject<Messages> extends true ? RemoveIndexSignature<{
-        [K in keyof DefineLocaleMessage]: DefineLocaleMessage[K];
-    }> : NonNullable<Messages>[Locale] : MessageSchema>(locale: LocaleSchema | Locale): Return;
-```
-
-#### Type Parameters
-
-| Parameter     | Description                                |
-| ------------- | ------------------------------------------ |
-| MessageSchema | The locale message schema, default `never` |
-
-**Details**
-
-get locale message from Composer instance [messages](composition#messages).
-
-#### Parameters
-
-| Parameter | Type                       | Description     |
-| --------- | -------------------------- | --------------- |
-| locale    | LocaleSchema &#124; Locale | A target locale |
-
-#### Returns
-
-Locale messages
-
-### getMissingHandler()
-
-Get missing handler
-
-**Signature:**
-
-```typescript
-getMissingHandler(): MissingHandler | null;
-```
-
-**See Also**
-
-- [missing](composition#missing)
-
-#### Parameters
-
-| Parameter | Type | Description |
-| --------- | ---- | ----------- |
-
-#### Returns
-
-[MissingHandler](composition#missinghandler)
-
-### getNumberFormat(locale)
-
-Get number format
-
-**Signature:**
-
-```typescript
-getNumberFormat<NumberSchema extends Record<string, any> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<NumberFormats>> = PickupLocales<NonNullable<NumberFormats>>, Return = IsNever<NumberSchema> extends true ? IsEmptyObject<NumberFormats> extends true ? RemoveIndexSignature<{
-        [K in keyof DefineNumberFormat]: DefineNumberFormat[K];
-    }> : NonNullable<NumberFormats>[Locale] : NumberSchema>(locale: LocaleSchema | Locale): Return;
-```
-
-#### Type Parameters
-
-| Parameter    | Description                               |
-| ------------ | ----------------------------------------- |
-| NumberSchema | The number format schema, default `never` |
-
-**Details**
-
-get number format from Composer instance [numberFormats](composition#numberFormats).
-
-#### Parameters
-
-| Parameter | Type                       | Description     |
-| --------- | -------------------------- | --------------- |
-| locale    | LocaleSchema &#124; Locale | A target locale |
-
-#### Returns
-
-Number format
-
-### getPostTranslationHandler()
-
-Get post translation handler
-
-**Signature:**
-
-```typescript
-getPostTranslationHandler(): PostTranslationHandler<VueMessageType> | null;
-```
-
-**See Also**
-
-- [missing](composition#posttranslation)
-
-#### Parameters
-
-| Parameter | Type | Description |
-| --------- | ---- | ----------- |
-
-#### Returns
-
-### mergeDateTimeFormat(locale, format)
-
-Merge datetime format
-
-**Signature:**
-
-```typescript
-mergeDateTimeFormat<DateTimeSchema extends Record<string, any> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<DateTimeFormats>> = PickupLocales<NonNullable<DateTimeFormats>>, Formats = IsNever<DateTimeSchema> extends true ? Record<string, any> : DateTimeSchema>(locale: LocaleSchema | Locale, format: Formats): void;
-```
-
-#### Type Parameters
-
-| Parameter      | Description                                 |
-| -------------- | ------------------------------------------- |
-| DateTimeSchema | The datetime format schema, default `never` |
-
-**Details**
-
-Merge datetime format to Composer instance [datetimeFormats](composition#datetimeformats).
-
-#### Parameters
-
-| Parameter | Type                       | Description              |
-| --------- | -------------------------- | ------------------------ |
-| locale    | LocaleSchema &#124; Locale | A target locale          |
-| format    | Formats                    | A target datetime format |
-
-### mergeLocaleMessage(locale, message)
-
-Merge locale message
-
-**Signature:**
-
-```typescript
-mergeLocaleMessage<MessageSchema extends LocaleMessage<VueMessageType> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<Messages>> = PickupLocales<NonNullable<Messages>>, Message = IsNever<MessageSchema> extends true ? Record<string, any> : MessageSchema>(locale: LocaleSchema | Locale, message: Message): void;
-```
-
-#### Type Parameters
-
-| Parameter     | Description                                |
-| ------------- | ------------------------------------------ |
-| MessageSchema | The locale message schema, default `never` |
-
-**Details**
-
-Merge locale message to Composer instance [messages](composition#messages).
-
-#### Parameters
-
-| Parameter | Type                       | Description     |
-| --------- | -------------------------- | --------------- |
-| locale    | LocaleSchema &#124; Locale | A target locale |
-| message   | Message                    | A message       |
-
-### mergeNumberFormat(locale, format)
-
-Merge number format
-
-**Signature:**
-
-```typescript
-mergeNumberFormat<NumberSchema extends Record<string, any> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<NumberFormats>> = PickupLocales<NonNullable<NumberFormats>>, Formats = IsNever<NumberSchema> extends true ? Record<string, any> : NumberSchema>(locale: LocaleSchema | Locale, format: Formats): void;
-```
-
-#### Type Parameters
-
-| Parameter    | Description                               |
-| ------------ | ----------------------------------------- |
-| NumberSchema | The number format schema, default `never` |
-
-**Details**
-
-Merge number format to Composer instance [numberFormats](composition#numberFormats).
-
-#### Parameters
-
-| Parameter | Type                       | Description            |
-| --------- | -------------------------- | ---------------------- |
-| locale    | LocaleSchema &#124; Locale | A target locale        |
-| format    | Formats                    | A target number format |
-
-### setDateTimeFormat(locale, format)
-
-Set datetime format
-
-**Signature:**
-
-```typescript
-setDateTimeFormat<DateTimeSchema extends Record<string, any> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<DateTimeFormats>> = PickupLocales<NonNullable<DateTimeFormats>>, FormatsType = IsNever<DateTimeSchema> extends true ? IsEmptyObject<DateTimeFormats> extends true ? RemoveIndexSignature<{
-        [K in keyof DefineDateTimeFormat]: DefineDateTimeFormat[K];
-    }> : NonNullable<DateTimeFormats>[Locale] : DateTimeSchema, Formats extends FormatsType = FormatsType>(locale: LocaleSchema | Locale, format: Formats): void;
-```
-
-#### Type Parameters
-
-| Parameter      | Description                                 |
-| -------------- | ------------------------------------------- |
-| DateTimeSchema | The datetime format schema, default `never` |
-
-**Details**
-
-Set datetime format to Composer instance [datetimeFormats](composition#datetimeformats).
-
-#### Parameters
-
-| Parameter | Type                       | Description              |
-| --------- | -------------------------- | ------------------------ |
-| locale    | LocaleSchema &#124; Locale | A target locale          |
-| format    | Formats                    | A target datetime format |
-
-### setLocaleMessage(locale, message)
-
-Set locale message
-
-**Signature:**
-
-```typescript
-setLocaleMessage<MessageSchema extends LocaleMessage<VueMessageType> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<Messages>> = PickupLocales<NonNullable<Messages>>, MessageType = IsNever<MessageSchema> extends true ? IsEmptyObject<Messages> extends true ? RemoveIndexSignature<{
-        [K in keyof DefineLocaleMessage]: DefineLocaleMessage[K];
-    }> : NonNullable<Messages>[Locale] : MessageSchema, Message extends MessageType = MessageType>(locale: LocaleSchema | Locale, message: Message): void;
-```
-
-#### Type Parameters
-
-| Parameter     | Description                                |
-| ------------- | ------------------------------------------ |
-| MessageSchema | The locale message schema, default `never` |
-
-**Details**
-
-Set locale message to Composer instance [messages](composition#messages).
-
-#### Parameters
-
-| Parameter | Type                       | Description     |
-| --------- | -------------------------- | --------------- |
-| locale    | LocaleSchema &#124; Locale | A target locale |
-| message   | Message                    | A message       |
-
-### setMissingHandler(handler)
-
-Set missing handler
-
-**Signature:**
-
-```typescript
-setMissingHandler(handler: MissingHandler | null): void;
-```
-
-**See Also**
-
-- [missing](composition#missing)
-
-#### Parameters
-
-| Parameter | Type                       | Description                                    |
-| --------- | -------------------------- | ---------------------------------------------- |
-| handler   | MissingHandler &#124; null | A [MissingHandler](composition#missinghandler) |
-
-### setNumberFormat(locale, format)
-
-Set number format
-
-**Signature:**
-
-```typescript
-setNumberFormat<NumberSchema extends Record<string, any> = never, LocaleSchema extends string = string, Locale extends PickupLocales<NonNullable<NumberFormats>> = PickupLocales<NonNullable<NumberFormats>>, FormatsType = IsNever<NumberSchema> extends true ? IsEmptyObject<NumberFormats> extends true ? RemoveIndexSignature<{
-        [K in keyof DefineNumberFormat]: DefineNumberFormat[K];
-    }> : NonNullable<NumberFormats>[Locale] : NumberSchema, Formats extends FormatsType = FormatsType>(locale: LocaleSchema | Locale, format: Formats): void;
-```
-
-#### Type Parameters
-
-| Parameter    | Description                               |
-| ------------ | ----------------------------------------- |
-| NumberSchema | The number format schema, default `never` |
-
-**Details**
-
-Set number format to Composer instance [numberFormats](composition#numberFormats).
-
-#### Parameters
-
-| Parameter | Type                       | Description            |
-| --------- | -------------------------- | ---------------------- |
-| locale    | LocaleSchema &#124; Locale | A target locale        |
-| format    | Formats                    | A target number format |
-
-### setPostTranslationHandler(handler)
-
-Set post translation handler
-
-**Signature:**
-
-```typescript
-setPostTranslationHandler(handler: PostTranslationHandler<VueMessageType> | null): void;
-```
-
-**See Also**
-
-- [missing](composition#posttranslation)
-
-#### Parameters
-
-| Parameter | Type                                                     | Description |
-| --------- | -------------------------------------------------------- | ----------- |
-| handler   | PostTranslationHandler&lt;VueMessageType&gt; &#124; null | A           |
-
-### te(key, locale)
-
-Translation locale message exist
-
-**Signature:**
-
-```typescript
-te<Str extends string, Key extends PickupKeys<Messages> = PickupKeys<Messages>>(key: Str | Key, locale?: Locales): boolean;
-```
-
-**Details**
-
-whether do exist locale message on Composer instance [messages](composition#messages).
-
-If you specified `locale`, check the locale messages of `locale`.
-
-#### Parameters
-
-| Parameter | Type           | Description                                                     |
-| --------- | -------------- | --------------------------------------------------------------- |
-| key       | Str &#124; Key | A target locale message key                                     |
-| locale    | Locales        | A locale, it will be used over than global scope or local scope |
-
-#### Returns
-
-If found locale message, `true`, else `false`, Note that `false` is returned even if the value present in the key is not translatable, yet if `translateExistCompatible` is set to `true`, it will return `true` if the key is available, even if the value is not translatable.
-
-### tm(key)
-
-Locale messages getter
-
-**Signature:**
-
-```typescript
-tm<Key extends string, ResourceKeys extends PickupKeys<Messages> = PickupKeys<Messages>, Locale extends PickupLocales<NonNullable<Messages>> = PickupLocales<NonNullable<Messages>>, Target = IsEmptyObject<Messages> extends false ? NonNullable<Messages>[Locale] : RemoveIndexSignature<{
-        [K in keyof DefineLocaleMessage]: DefineLocaleMessage[K];
-    }>, Return = ResourceKeys extends ResourcePath<Target> ? ResourceValue<Target, ResourceKeys> : Record<string, any>>(key: Key | ResourceKeys): Return;
-```
-
-**Details**
-
-If [UseI18nScope](general#usei18nscope) `'local'` or Some [UseI18nOptions](composition#usei18noptions) are specified at `useI18n`, it’s translated in preferentially local scope locale messages than global scope locale messages.
-
-Based on the current `locale`, locale messages will be returned from Composer instance messages.
-
-If you change the `locale`, the locale messages returned will also correspond to the locale.
-
-If there are no locale messages for the given `key` in the composer instance messages, they will be returned with [fallbacking](../../guide/essentials/fallback).
-
-:::warning
-You need to use `rt` for the locale message returned by `tm`. see the [rt](composition#rt-message) details.
-:::
-
-#### Parameters
-
-| Parameter | Type                    | Description                 |
-| --------- | ----------------------- | --------------------------- |
-| key       | Key &#124; ResourceKeys | A target locale message key |
-
-Locale messages |
-
-**Examples**
-
-template block:
-
-```html
-<div class="container">
-  <template v-for="content in tm('contents')">
-    <h2>{{ rt(content.title) }}</h2>
-    <p v-for="paragraph in content.paragraphs">{{ rt(paragraph) }}</p>
-  </template>
-</div>
-```
-
-script block:
-
-```js
-import { defineComponent } from 'vue
-import { useI18n } from 'vue-i18n'
-
-export default defineComponent({
-  setup() {
-    const { rt, tm } = useI18n({
-      messages: {
-        en: {
-          contents: [
-            {
-              title: 'Title1',
-              // ...
-              paragraphs: [
-                // ...
-              ]
-            }
-          ]
-        }
-      }
-      // ...
-    })
-    // ...
-    return { ... , rt, tm }
-  }
-})
-```
-
-## ComposerAdditionalOptions
-
-Composer additional options for `useI18n`
-
-**Signature:**
-
-```typescript
-export interface ComposerAdditionalOptions
-```
-
-**Details**
-
-`ComposerAdditionalOptions` is extend for [ComposerOptions](composition#composeroptions), so you can specify these options.
-
-**See Also**
-
-- [useI18n](composition#usei18n)
-
-### useScope
-
-## ComposerCustom
-
-The type custom definition of Composer
-
-**Signature:**
-
-```typescript
-export interface ComposerCustom
-```
-
-**Details**
-
-The interface that can extend Composer.
-
-The type defined by 3rd party (e.g. nuxt/i18n)
-
-**Examples**
-
-```ts
-// vue-i18n.d.ts (`.d.ts` file at your app)
-
-declare module 'vue-i18n' {
-  interface ComposerCustom {
-    localeCodes: string[]
-  }
-}
-```
-
-## ComposerDateTimeFormatting
-
-Datetime formatting functions
-
-**Signature:**
-
-```typescript
-export interface ComposerDateTimeFormatting<DateTimeFormats extends Record<string, any> = {}, Locales = 'en-US', DefinedDateTimeFormat extends RemovedIndexResources<DefineDateTimeFormat> = RemovedIndexResources<DefineDateTimeFormat>, C = IsEmptyObject<DefinedDateTimeFormat> extends false ? PickupFormatPathKeys<{
-    [K in keyof DefinedDateTimeFormat]: DefinedDateTimeFormat[K];
-}> : never, M = IsEmptyObject<DateTimeFormats> extends false ? PickupFormatKeys<DateTimeFormats> : never, ResourceKeys extends C | M = IsNever<C> extends false ? IsNever<M> extends false ? C | M : C : IsNever<M> extends false ? M : never>
-```
-
-**Details**
-
-This is the interface for [Composer](composition#composer)
-
-### (value: number | Date | string): string;
-
-Datetime formatting
-
-**Signature:**
-
-```typescript
-(value: number | Date | string): string;
-```
-
-**Details**
-
-If this is used in a reactive context, it will re-evaluate once the locale changes.
-
-If [UseI18nScope](general#usei18nscope) `'local'` or Some [UseI18nOptions](composition#usei18noptions) are specified at `useI18n`, it’s translated in preferentially local scope datetime formats than global scope datetime formats.
-
-If not, then it’s formatted with global scope datetime formats.
-
-**See Also**
-
-- [Datetime formatting](../../guide/essentials/datetime)
-
-#### Parameters
-
-| Parameter | Type                             | Description                                                     |
-| --------- | -------------------------------- | --------------------------------------------------------------- |
-| value     | number &#124; Date &#124; string | A value, timestamp number or `Date` instance or ISO 8601 string |
-
-#### Returns
-
-Formatted value
-
-### (value: Value, keyOrOptions: Key | ResourceKeys | DateTimeOptions&lt;Key | ResourceKeys, Locales&gt;): string;
-
-Datetime formatting
-
-**Signature:**
-
-```typescript
-<Value extends number | Date | string = number, Key extends string = string>(value: Value, keyOrOptions: Key | ResourceKeys | DateTimeOptions<Key | ResourceKeys, Locales>): string;
-```
-
-**Details**
-
-Overloaded `d`. About details, see the [call signature](composition#value-number-date-string-string) details.
-
-In this overloaded `d`, format in datetime format for a key registered in datetime formats.
-
-#### Parameters
-
-| Parameter    | Type                                                                                   | Description                                                      |
-| ------------ | -------------------------------------------------------------------------------------- | ---------------------------------------------------------------- |
-| value        | Value                                                                                  | A value, timestamp number or `Date` instance or ISO 8601 string  |
-| keyOrOptions | Key &#124; ResourceKeys &#124; DateTimeOptions&lt;Key &#124; ResourceKeys, Locales&gt; | A key of datetime formats, or additional for datetime formatting |
-
-#### Returns
-
-Formatted value
-
-### (value: Value, keyOrOptions: Key | ResourceKeys | DateTimeOptions&lt;Key | ResourceKeys, Locales&gt;, locale: Locales): string;
-
-Datetime formatting
-
-**Signature:**
-
-```typescript
-<Value extends number | Date | string = number, Key extends string = string>(value: Value, keyOrOptions: Key | ResourceKeys | DateTimeOptions<Key | ResourceKeys, Locales>, locale: Locales): string;
-```
-
-**Details**
-
-Overloaded `d`. About details, see the [call signature](composition#value-number-date-string-string) details.
-
-In this overloaded `d`, format in datetime format for a key registered in datetime formats at target locale
-
-#### Parameters
-
-| Parameter    | Type                                                                                   | Description                                                      |
-| ------------ | -------------------------------------------------------------------------------------- | ---------------------------------------------------------------- |
-| value        | Value                                                                                  | A value, timestamp number or `Date` instance or ISO 8601 string  |
-| keyOrOptions | Key &#124; ResourceKeys &#124; DateTimeOptions&lt;Key &#124; ResourceKeys, Locales&gt; | A key of datetime formats, or additional for datetime formatting |
-| locale       | Locales                                                                                | A locale, it will be used over than global scope or local scope. |
-
-#### Returns
-
-Formatted value
-
-## ComposerNumberFormatting
-
-Number formatting functions
-
-**Signature:**
-
-```typescript
-export interface ComposerNumberFormatting<NumberFormats extends Record<string, any> = {}, Locales = 'en-US', DefinedNumberFormat extends RemovedIndexResources<DefineNumberFormat> = RemovedIndexResources<DefineNumberFormat>, C = IsEmptyObject<DefinedNumberFormat> extends false ? PickupFormatPathKeys<{
-    [K in keyof DefinedNumberFormat]: DefinedNumberFormat[K];
-}> : never, M = IsEmptyObject<NumberFormats> extends false ? PickupFormatKeys<NumberFormats> : never, ResourceKeys extends C | M = IsNever<C> extends false ? IsNever<M> extends false ? C | M : C : IsNever<M> extends false ? M : never>
-```
-
-**Details**
-
-This is the interface for [Composer](composition#composer)
-
-### (value: number): string;
-
-Number Formatting
-
-**Signature:**
-
-```typescript
-(value: number): string;
-```
-
-**Details**
-
-If this is used in a reactive context, it will re-evaluate once the locale changes.
-
-If [UseI18nScope](general#usei18nscope) `'local'` or Some [UseI18nOptions](composition#usei18noptions) are specified at `useI18n`, it’s translated in preferentially local scope datetime formats than global scope datetime formats.
-
-If not, then it’s formatted with global scope number formats.
-
-**See Also**
-
-- [Number formatting](../../guide/essentials/number)
-
-#### Parameters
-
-| Parameter | Type   | Description    |
-| --------- | ------ | -------------- |
-| value     | number | A number value |
-
-#### Returns
-
-Formatted value
-
-### (value: number, keyOrOptions: Key | ResourceKeys | NumberOptions&lt;Key | ResourceKeys, Locales&gt;): PartType;
-
-Number Formatting
-
-**Signature:**
-
-```typescript
-<PartType extends string | Intl.NumberFormatPart[] = string | Intl.NumberFormatPart[], Key extends string = string>(value: number, keyOrOptions: Key | ResourceKeys | NumberOptions<Key | ResourceKeys, Locales>): PartType;
-```
-
-**Details**
-
-Overloaded `n`. About details, see the [call signature](composition#value-number-string) details.
-
-In this overloaded `n`, format in number format for a key registered in number formats.
-
-#### Parameters
-
-| Parameter    | Type                                                                                 | Description                                                  |
-| ------------ | ------------------------------------------------------------------------------------ | ------------------------------------------------------------ |
-| value        | number                                                                               | A number value                                               |
-| keyOrOptions | Key &#124; ResourceKeys &#124; NumberOptions&lt;Key &#124; ResourceKeys, Locales&gt; | A key of number formats, or additional for number formatting |
-
-#### Returns
-
-Formatted value
-
-### (value: number, keyOrOptions: Key | ResourceKeys | NumberOptions&lt;Key | ResourceKeys, Locales&gt;, locale: Locales): PartType;
-
-Number Formatting
-
-**Signature:**
-
-```typescript
-<PartType extends string | Intl.NumberFormatPart[] = string | Intl.NumberFormatPart[], Key extends string = string>(value: number, keyOrOptions: Key | ResourceKeys | NumberOptions<Key | ResourceKeys, Locales>, locale: Locales): PartType;
-```
-
-**Details**
-
-Overloaded `n`. About details, see the [call signature](composition#value-number-string) details.
-
-In this overloaded `n`, format in number format for a key registered in number formats at target locale.
-
-#### Parameters
-
-| Parameter    | Type                                                                                 | Description                                                      |
-| ------------ | ------------------------------------------------------------------------------------ | ---------------------------------------------------------------- |
-| value        | number                                                                               | A number value                                                   |
-| keyOrOptions | Key &#124; ResourceKeys &#124; NumberOptions&lt;Key &#124; ResourceKeys, Locales&gt; | A key of number formats, or additional for number formatting     |
-| locale       | Locales                                                                              | A locale, it will be used over than global scope or local scope. |
-
-#### Returns
-
-Formatted value
-
-## ComposerOptions
-
-Composer Options
-
-**Signature:**
-
-```typescript
-export interface ComposerOptions<Schema extends {
-    message?: unknown;
-    datetime?: unknown;
-    number?: unknown;
-} = {
-    message: DefaultLocaleMessageSchema;
-    datetime: DefaultDateTimeFormatSchema;
-    number: DefaultNumberFormatSchema;
-}, Locales extends {
-    messages: unknown;
-    datetimeFormats: unknown;
-    numberFormats: unknown;
-} | string = Locale, MessagesLocales = Locales extends {
-    messages: infer M;
-} ? M : Locales extends string ? Locales : Locale, DateTimeFormatsLocales = Locales extends {
-    datetimeFormats: infer D;
-} ? D : Locales extends string ? Locales : Locale, NumberFormatsLocales = Locales extends {
-    numberFormats: infer N;
-} ? N : Locales extends string ? Locales : Locale, MessageSchema = Schema extends {
-    message: infer M;
-} ? M : DefaultLocaleMessageSchema, DateTimeSchema = Schema extends {
-    datetime: infer D;
-} ? D : DefaultDateTimeFormatSchema, NumberSchema = Schema extends {
-    number: infer N;
-} ? N : DefaultNumberFormatSchema, _Messages extends LocaleMessages<MessageSchema, MessagesLocales, VueMessageType> = LocaleMessages<MessageSchema, MessagesLocales, VueMessageType>, _DateTimeFormats extends DateTimeFormatsType<DateTimeSchema, DateTimeFormatsLocales> = DateTimeFormatsType<DateTimeSchema, DateTimeFormatsLocales>, _NumberFormats extends NumberFormatsType<NumberSchema, NumberFormatsLocales> = NumberFormatsType<NumberSchema, NumberFormatsLocales>>
-```
-
-**Details**
-
-This is options to create composer.
-
-### datetime
-
-### datetimeFormats
-
-### escapeParameter
-
-**Signature:**
-
-```typescript
-escapeParameter?: boolean;
-```
-
-**Details**
-
-If `escapeParameter` is configured as true then interpolation parameters are escaped before the message is translated.
-
-This is useful when translation output is used in `v-html` and the translation resource contains html markup (e.g. around a user provided value).
-
-This usage pattern mostly occurs when passing precomputed text strings into UI components.
-
-The escape process involves replacing the following symbols with their respective HTML character entities: `<`, `>`, `"`, `'`.
-
-Setting `escapeParameter` as true should not break existing functionality but provides a safeguard against a subtle type of XSS attack vectors.
-
-**Default Value**
-
-`false`
-
-**See Also**
-
-- [HTML Message](../../guide/essentials/syntax#html-message)
-
-### fallbackFormat
-
-**Signature:**
-
-```typescript
-fallbackFormat?: boolean;
-```
-
-**Details**
-
-Whether do template interpolation on translation keys when your language lacks a translation for a key.
-
-If `true`, skip writing templates for your "base" language; the keys are your templates.
-
-**Default Value**
-
-`false`
-
-**See Also**
-
-- [Fallbacking](../../guide/essentials/fallback)
-
-### fallbackLocale
-
-**Signature:**
-
-```typescript
-fallbackLocale?: FallbackLocale;
-```
-
-**Details**
-
-The locale of fallback localization.
-
-For more complex fallback definitions see fallback.
-
-**Default Value**
-
-The default `'en-US'` for the `locale` if it's not specified, or it's `locale` value
-
-**See Also**
-
-- [Fallbacking](../../guide/essentials/fallback)
-
-### fallbackRoot
-
-**Signature:**
-
-```typescript
-fallbackRoot?: boolean;
-```
-
-**Details**
-
-In the component localization, whether to fallback to root level (global scope) localization when localization fails.
-
-If `false`, it's not fallback to root.
-
-**Default Value**
-
-`true`
-
-**See Also**
-
-- [Fallbacking](../../guide/essentials/fallback)
-
-### fallbackWarn
-
-**Signature:**
-
-```typescript
-fallbackWarn?: boolean | RegExp;
-```
-
-**Details**
-
-Whether suppress warnings when falling back to either `fallbackLocale` or root.
-
-If `false`, suppress fall back warnings.
-
-If you use regular expression, you can suppress fallback warnings that it match with translation key (e.g. `t`).
-
-**Default Value**
-
-`true`
-
-**See Also**
-
-- [Fallbacking](../../guide/essentials/fallback)
-
-### flatJson
-
-**Signature:**
-
-```typescript
-flatJson?: boolean;
-```
-
-**Details**
-
-Allow use flat json messages or not
-
-**Default Value**
-
-`false`
-
-### inheritLocale
-
-**Signature:**
-
-```typescript
-inheritLocale?: boolean;
-```
-
-**Details**
-
-Whether inheritance the root level locale to the component localization locale.
-
-If `false`, regardless of the root level locale, localize for each component locale.
-
-**Default Value**
-
-`true`
-
-**See Also**
-
-- [Local Scope](../../guide/essentials/scope#local-scope-2)
-
-### locale
-
-**Signature:**
-
-```typescript
-locale?: Locale;
-```
-
-**Details**
-
-The locale of localization.
-
-If the locale contains a territory and a dialect, this locale contains an implicit fallback.
-
-**Default Value**
-
-`'en-US'`
-
-**See Also**
-
-- [Scope and Locale Changing](../../guide/essentials/scope)
-
-### message
-
-### messageCompiler
-
-**Signature:**
-
-```typescript
-messageCompiler?: MessageCompiler;
-```
-
-**Details**
-
-A compiler for custom message format.
-
-If not specified, the vue-i18n default message compiler will be used.
-
-You will need to implement your own message compiler that returns Message Functions
-
-:::tip
-:new: v9.3+
-:::
-
-:::warning
-The Custom Message Format is an experimental feature. It may receive breaking changes or be removed in the future.
-:::
-
-**Default Value**
-
-`undefined`
-
-**See Also**
-
-- [Custom Message Format](../../guide/advanced/format)
-
-**Examples**
-
-Here is an example of how to custom message compiler with `intl-messageformat`
-
-```js
-import { createI18n } from 'vue-i18n'
-import IntlMessageFormat from 'intl-messageformat'
-
-function messageCompiler(message, { locale, key, onError }) {
-  if (typeof message === 'string') {
-    // You can tune your message compiler performance more with your cache strategy or also memoization at here
-    const formatter = new IntlMessageFormat(message, locale)
-    return ctx => formatter.format(ctx.values)
-  } else {
-    // If you would like to support it for AST,
-    // You need to transform locale mesages such as `json`, `yaml`, etc. with the bundle plugin.
-    onError && onError(new Error('not support for AST'))
-    return () => key // return default with `key`
-  }
-}
-
-// call with I18n option
-const i18n = createI18n({
-  locale: 'ja',
-  messageCompiler, // set your message compiler
-  messages: {
-    en: {
-      hello: 'hello world!',
-      greeting: 'hi, {name}!',
-      // ICU Message format
-      photo: `You have {numPhotos, plural,
-        =0 {no photos.}
-        =1 {one photo.}
-        other {# photos.}
-      }`
-    }
-  }
-})
-
-// the below your something to do ...
-// ...
-```
-
-### messageResolver
-
-**Signature:**
-
-```typescript
-messageResolver?: MessageResolver;
-```
-
-**Details**
-
-A message resolver to resolve [`messages`](composition#messages).
-
-If not specified, the vue-i18n internal message resolver will be used by default.
-
-You need to implement a message resolver yourself that supports the following requirements:
-
-- Resolve the message using the locale message of [`locale`](composition#locale) passed as the first argument of the message resolver, and the path passed as the second argument.
-
-- If the message could not be resolved, you need to return `null`.
-
-- If you will be returned `null`, the message resolver will also be called on fallback if [`fallbackLocale`](composition#fallbacklocale-2) is enabled, so the message will need to be resolved as well.
-
-The message resolver is called indirectly by the following APIs:
-
-- [`t`](composition#t-key)
-
-- [`te`](composition#te-key-locale)
-
-- [`tm`](composition#tm-key)
-
-- [Translation component](component#translation)
-
-:::tip
-:new: v9.2+
-:::
-
-:::warning
-If you use the message resolver, the [`flatJson`](composition#flatjson) setting will be ignored. That is, you need to resolve the flat JSON by yourself.
-:::
-
-**Default Value**
-
-`undefined`
-
-**See Also**
-
-- [Fallbacking](../../guide/essentials/fallback)
-
-**Examples**
-
-Here is an example of how to set it up using your `createI18n`:
-
-```js
-import { createI18n } from 'vue-i18n'
-
-// your message resolver
-function messageResolver(obj, path) {
-  // simple message resolving!
-  const msg = obj[path]
-  return msg != null ? msg : null
-}
-
-// call with I18n option
-const i18n = createI18n({
-  locale: 'ja',
-  messageResolver, // set your message resolver
-  messages: {
-    en: { ... },
-    ja: { ... }
-  }
-})
-
-// the below your something to do ...
-// ...
-```
-
-### messages
-
-### missing
-
-**Signature:**
-
-```typescript
-missing?: MissingHandler;
-```
-
-**Details**
-
-A handler for localization missing.
-
-The handler gets called with the localization target locale, localization path key, the Vue instance and values.
-
-If missing handler is assigned, and occurred localization missing, it's not warned.
-
-**Default Value**
-
-`null`
-
-### missingWarn
-
-**Signature:**
-
-```typescript
-missingWarn?: boolean | RegExp;
-```
-
-**Details**
-
-Whether suppress warnings outputted when localization fails.
-
-If `false`, suppress localization fail warnings.
-
-If you use regular expression, you can suppress localization fail warnings that it match with translation key (e.g. `t`).
-
-**Default Value**
-
-`true`
-
-**See Also**
-
-- [Fallbacking](../../guide/essentials/fallback)
-
-### modifiers
-
-**Signature:**
-
-```typescript
-modifiers?: LinkedModifiers<VueMessageType>;
-```
-
-**Details**
-
-Custom Modifiers for linked messages.
-
-**See Also**
-
-- [Custom Modifiers](../../guide/essentials/syntax#custom-modifiers)
-
-### number
-
-### numberFormats
-
-### pluralRules
-
-**Signature:**
-
-```typescript
-pluralRules?: PluralizationRules;
-```
-
-**Details**
-
-A set of rules for word pluralization
-
-**Default Value**
-
-`{}`
-
-**See Also**
-
-- [Custom Pluralization](../../guide/essentials/pluralization#custom-pluralization)
-
-### postTranslation
-
-**Signature:**
-
-```typescript
-postTranslation?: PostTranslationHandler<VueMessageType>;
-```
-
-**Details**
-
-A handler for post processing of translation.
-
-The handler gets after being called with the `t`.
-
-This handler is useful if you want to filter on translated text such as space trimming.
-
-**Default Value**
-
-`null`
-
-### warnHtmlMessage
-
-**Signature:**
-
-```typescript
-warnHtmlMessage?: boolean;
-```
-
-**Details**
-
-Whether to allow the use locale messages of HTML formatting.
-
-See the warnHtmlMessage property.
-
-**Default Value**
-
-`'off'`
-
-**See Also**
-
-- [HTML Message](../../guide/essentials/syntax#html-message)
-- [Change `warnHtmlInMessage` option default value](../../guide/migration/breaking#change-warnhtmlinmessage-option-default-value)
-
-## ComposerResolveLocaleMessageTranslation
-
-Resolve locale message translation functions
-
-**Signature:**
-
-```typescript
-export interface ComposerResolveLocaleMessageTranslation<Locales = 'en-US'>
-```
-
-**Details**
-
-This is the interface for [Composer](composition#composer)
-
-### (message: MessageFunction&lt;VueMessageType&gt; | VueMessageType): string;
-
-Resolve locale message translation
-
-**Signature:**
-
-```typescript
-(message: MessageFunction<VueMessageType> | VueMessageType): string;
-```
-
-**Details**
-
-If this is used in a reactive context, it will re-evaluate once the locale changes.
-
-If [UseI18nScope](general#usei18nscope) `'local'` or Some [UseI18nOptions](composition#usei18noptions) are specified at `useI18n`, it’s translated in preferentially local scope locale messages than global scope locale messages.
-
-If not, then it’s translated with global scope locale messages.
-
-**See Also**
-
-- [Scope and Locale Changing](../../guide/essentials/scope)
-
-:::tip
-The use-case for `rt` is for programmatic locale messages translation with using `tm`, `v-for`, javascript `for` statement.
-:::
-
-:::warning
-`rt` differs from `t` in that it processes the locale message directly, not the key of the locale message. There is no internal fallback with `rt`. You need to understand and use the structure of the locale messge returned by `tm`.
-:::
-
-#### Parameters
-
-| Parameter | Type                                                        | Description                                                                                           |
-| --------- | ----------------------------------------------------------- | ----------------------------------------------------------------------------------------------------- |
-| message   | MessageFunction&lt;VueMessageType&gt; &#124; VueMessageType | A target locale message to be resolved. You will need to specify the locale message returned by `tm`. |
-
-#### Returns
-
-Translated message
-
-### (message: MessageFunction&lt;VueMessageType&gt; | VueMessageType, plural: number, options?: TranslateOptions&lt;Locales&gt;): string;
-
-Resolve locale message translation for plurals
-
-**Signature:**
-
-```typescript
-(message: MessageFunction<VueMessageType> | VueMessageType, plural: number, options?: TranslateOptions<Locales>): string;
-```
-
-**Details**
-
-Overloaded `rt`. About details, see the [call signature](composition#message-messagefunction-message-message-string) details.
-
-In this overloaded `rt`, return a pluralized translation message.
-
-**See Also**
-
-- [Pluralization](../../guide/essentials/pluralization)
-
-:::tip
-The use-case for `rt` is for programmatic locale messages translation with using `tm`, `v-for`, javascript `for` statement.
-:::
-
-:::warning
-`rt` differs from `t` in that it processes the locale message directly, not the key of the locale message. There is no internal fallback with `rt`. You need to understand and use the structure of the locale messge returned by `tm`.
-:::
-
-#### Parameters
-
-| Parameter | Type                                                        | Description                                                                                           |
-| --------- | ----------------------------------------------------------- | ----------------------------------------------------------------------------------------------------- |
-| message   | MessageFunction&lt;VueMessageType&gt; &#124; VueMessageType | A target locale message to be resolved. You will need to specify the locale message returned by `tm`. |
-| plural    | number                                                      | Which plural string to get. 1 returns the first one.                                                  |
-| options   | TranslateOptions&lt;Locales&gt;                             | Additional for translation                                                                            |
-
-#### Returns
-
-Translated message
-
-### (message: MessageFunction&lt;VueMessageType&gt; | VueMessageType, list: unknown[], options?: TranslateOptions&lt;Locales&gt;): string;
-
-Resolve locale message translation for list interpolations
-
-**Signature:**
-
-```typescript
-(message: MessageFunction<VueMessageType> | VueMessageType, list: unknown[], options?: TranslateOptions<Locales>): string;
-```
-
-**Details**
-
-Overloaded `rt`. About details, see the [call signature](composition#message-messagefunction-message-message-string) details.
-
-In this overloaded `rt`, return a pluralized translation message.
-
-**See Also**
-
-- [List interpolation](../../guide/essentials/syntax#list-interpolation)
-
-:::tip
-The use-case for `rt` is for programmatic locale messages translation with using `tm`, `v-for`, javascript `for` statement.
-:::
-
-:::warning
-`rt` differs from `t` in that it processes the locale message directly, not the key of the locale message. There is no internal fallback with `rt`. You need to understand and use the structure of the locale messge returned by `tm`.
-:::
-
-#### Parameters
-
-| Parameter | Type                                                        | Description                                                                                           |
-| --------- | ----------------------------------------------------------- | ----------------------------------------------------------------------------------------------------- |
-| message   | MessageFunction&lt;VueMessageType&gt; &#124; VueMessageType | A target locale message to be resolved. You will need to specify the locale message returned by `tm`. |
-| list      | unknown[]                                                   | A values of list interpolation.                                                                       |
-| options   | TranslateOptions&lt;Locales&gt;                             | Additional for translation                                                                            |
-
-#### Returns
-
-Translated message
-
-### (message: MessageFunction&lt;VueMessageType&gt; | VueMessageType, named: NamedValue, options?: TranslateOptions&lt;Locales&gt;): string;
-
-Resolve locale message translation for named interpolations
-
-**Signature:**
-
-```typescript
-(message: MessageFunction<VueMessageType> | VueMessageType, named: NamedValue, options?: TranslateOptions<Locales>): string;
-```
-
-**Details**
-
-Overloaded `rt`. About details, see the [call signature](composition#message-messagefunction-message-message-string) details.
-
-In this overloaded `rt`, for each placeholder x, the locale messages should contain a `{x}` token.
-
-**See Also**
-
-- [Named interpolation](../../guide/essentials/syntax#named-interpolation)
-
-:::tip
-The use-case for `rt` is for programmatic locale messages translation with using `tm`, `v-for`, javascript `for` statement.
-:::
-
-:::warning
-`rt` differs from `t` in that it processes the locale message directly, not the key of the locale message. There is no internal fallback with `rt`. You need to understand and use the structure of the locale messge returned by `tm`.
-:::
-
-#### Parameters
-
-| Parameter | Type                                                        | Description                                                                                           |
-| --------- | ----------------------------------------------------------- | ----------------------------------------------------------------------------------------------------- |
-| message   | MessageFunction&lt;VueMessageType&gt; &#124; VueMessageType | A target locale message to be resolved. You will need to specify the locale message returned by `tm`. |
-| named     | NamedValue                                                  | A values of named interpolation.                                                                      |
-| options   | TranslateOptions&lt;Locales&gt;                             | Additional for translation                                                                            |
-
-#### Returns
-
-Translated message
-
-## ComposerTranslation
-
-Locale message translation functions
-
-**Signature:**
-
-```typescript
-export interface ComposerTranslation<Messages extends Record<string, any> = {}, Locales = 'en-US', DefinedLocaleMessage extends RemovedIndexResources<DefineLocaleMessage> = RemovedIndexResources<DefineLocaleMessage>, C = IsEmptyObject<DefinedLocaleMessage> extends false ? JsonPaths<{
-    [K in keyof DefinedLocaleMessage]: DefinedLocaleMessage[K];
-}> : never, M = IsEmptyObject<Messages> extends false ? TranslationsPaths<Messages> : never, ResourceKeys extends C | M = IsNever<C> extends false ? IsNever<M> extends false ? C | M : C : IsNever<M> extends false ? M : never>
-```
-
-**Details**
-
-This is the interface for [Composer](composition#composer)
-
-### (key: Key | ResourceKeys | number): string;
-
-Locale message translation
-
-**Signature:**
-
-```typescript
-<Key extends string>(key: Key | ResourceKeys | number): string;
-```
-
-**Details**
-
-If this is used in a reactive context, it will re-evaluate once the locale changes.
-
-If [UseI18nScope](general#usei18nscope) `'local'` or Some [UseI18nOptions](composition#usei18noptions) are specified at `useI18n`, it’s translated in preferentially local scope locale messages than global scope locale messages.
-
-If not, then it’s translated with global scope locale messages.
-
-**See Also**
-
-- [Scope and Locale Changing](../../guide/essentials/scope)
-
-#### Parameters
-
-| Parameter | Type                                  | Description                 |
-| --------- | ------------------------------------- | --------------------------- |
-| key       | Key &#124; ResourceKeys &#124; number | A target locale message key |
-
-#### Returns
-
-Translated message
-
-### (key: Key | ResourceKeys | number, named: NamedValue): string;
-
-Locale message translation for named interpolations
-
-**Signature:**
-
-```typescript
-<Key extends string>(key: Key | ResourceKeys | number, named: NamedValue): string;
-```
-
-**Details**
-
-Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
-
-In this overloaded `t`, for each placeholder x, the locale messages should contain a `{x}` token.
-
-You can also suppress the warning, when the translation missing according to the options.
-
-**See Also**
-
-- [Named interpolation](../../guide/essentials/syntax#named-interpolation)
-
-#### Parameters
-
-| Parameter | Type                                  | Description                     |
-| --------- | ------------------------------------- | ------------------------------- |
-| key       | Key &#124; ResourceKeys &#124; number | A target locale message key     |
-| named     | NamedValue                            | A values of named interpolation |
-
-#### Returns
-
-Translated message
-
-### (key: Key | ResourceKeys | number, named: NamedValue, plural: number): string;
-
-Locale message translation for named interpolations and plurals
-
-**Signature:**
-
-```typescript
-<Key extends string>(key: Key | ResourceKeys | number, named: NamedValue, plural: number): string;
-```
-
-**Details**
-
-Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
-
-In this overloaded `t`, for each placeholder x, the locale messages should contain a `{x}` token, and return a pluralized translation message.
-
-**See Also**
-
-- [Pluralization](../../guide/essentials/pluralization)
-- [Named interpolation](../../guide/essentials/syntax#named-interpolation)
-
-#### Parameters
-
-| Parameter | Type                                  | Description                                          |
-| --------- | ------------------------------------- | ---------------------------------------------------- |
-| key       | Key &#124; ResourceKeys &#124; number | A target locale message key                          |
-| named     | NamedValue                            | A values of named interpolation                      |
-| plural    | number                                | Which plural string to get. 1 returns the first one. |
-
-#### Returns
-
-Translated message
-
-### (key: Key | ResourceKeys | number, named: NamedValue, defaultMsg: string): string;
-
-Locale message translation for named interpolations and plurals
-
-**Signature:**
-
-```typescript
-<Key extends string>(key: Key | ResourceKeys | number, named: NamedValue, defaultMsg: string): string;
-```
-
-**Details**
-
-Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
-
-In this overloaded `t`, for each placeholder x, the locale messages should contain a `{x}` token, and if no translation was found, return a default message.
-
-**See Also**
-
-- [Named interpolation](../../guide/essentials/syntax#named-interpolation)
-
-#### Parameters
-
-| Parameter  | Type                                  | Description                                             |
-| ---------- | ------------------------------------- | ------------------------------------------------------- |
-| key        | Key &#124; ResourceKeys &#124; number | A target locale message key                             |
-| named      | NamedValue                            | A values of named interpolation                         |
-| defaultMsg | string                                | A default message to return if no translation was found |
-
-#### Returns
-
-Translated message
-
-### (key: Key | ResourceKeys | number, named: NamedValue, options: TranslateOptions&lt;Locales&gt;): string;
-
-Locale message translation for named interpolations
-
-**Signature:**
-
-```typescript
-<Key extends string>(key: Key | ResourceKeys | number, named: NamedValue, options: TranslateOptions<Locales>): string;
-```
-
-**Details**
-
-Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
-
-In this overloaded `t`, for each placeholder x, the locale messages should contain a `{x}` token.
-
-You can also suppress the warning, when the translation missing according to the options.
-
-About details of options, see the .
-
-**See Also**
-
-- [Named interpolation](../../guide/essentials/syntax#named-interpolation)
-
-#### Parameters
-
-| Parameter | Type                                  | Description                     |
-| --------- | ------------------------------------- | ------------------------------- |
-| key       | Key &#124; ResourceKeys &#124; number | A target locale message key     |
-| named     | NamedValue                            | A values of named interpolation |
-| options   | TranslateOptions&lt;Locales&gt;       | Additional for translation      |
-
-#### Returns
-
-Translated message
-
-### (key: Key | ResourceKeys | number, plural: number): string;
-
-Locale message translation for plurals
-
-**Signature:**
-
-```typescript
-<Key extends string>(key: Key | ResourceKeys | number, plural: number): string;
-```
-
-**Details**
-
-Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
-
-In this overloaded `t`, return a pluralized translation message.
-
-You can also suppress the warning, when the translation missing according to the options.
-
-**See Also**
-
-- [Pluralization](../../guide/essentials/pluralization)
-
-#### Parameters
-
-| Parameter | Type                                  | Description                                          |
-| --------- | ------------------------------------- | ---------------------------------------------------- |
-| key       | Key &#124; ResourceKeys &#124; number | A target locale message key                          |
-| plural    | number                                | Which plural string to get. 1 returns the first one. |
-
-#### Returns
-
-Translated message
-
-### (key: Key | ResourceKeys | number, plural: number, options: TranslateOptions&lt;Locales&gt;): string;
-
-Locale message translation for plurals
-
-**Signature:**
-
-```typescript
-<Key extends string>(key: Key | ResourceKeys | number, plural: number, options: TranslateOptions<Locales>): string;
-```
-
-**Details**
-
-Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
-
-In this overloaded `t`, return a pluralized translation message.
-
-You can also suppress the warning, when the translation missing according to the options.
-
-About details of options, see the .
-
-**See Also**
-
-- [Pluralization](../../guide/essentials/pluralization)
-
-#### Parameters
-
-| Parameter | Type                                  | Description                                          |
-| --------- | ------------------------------------- | ---------------------------------------------------- |
-| key       | Key &#124; ResourceKeys &#124; number | A target locale message key                          |
-| plural    | number                                | Which plural string to get. 1 returns the first one. |
-| options   | TranslateOptions&lt;Locales&gt;       | Additional for translation                           |
-
-#### Returns
-
-Translated message
-
-### (key: Key | ResourceKeys | number, defaultMsg: string): string;
-
-Locale message translation for missing default message
-
-**Signature:**
-
-```typescript
-<Key extends string>(key: Key | ResourceKeys | number, defaultMsg: string): string;
-```
-
-**Details**
-
-Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
-
-In this overloaded `t`, if no translation was found, return a default message.
-
-You can also suppress the warning, when the translation missing according to the options.
-
-#### Parameters
-
-| Parameter  | Type                                  | Description                                             |
-| ---------- | ------------------------------------- | ------------------------------------------------------- |
-| key        | Key &#124; ResourceKeys &#124; number | A target locale message key                             |
-| defaultMsg | string                                | A default message to return if no translation was found |
-
-#### Returns
-
-Translated message
-
-### (key: Key | ResourceKeys | number, defaultMsg: string, options: TranslateOptions&lt;Locales&gt;): string;
-
-Locale message translation for missing default message
-
-**Signature:**
-
-```typescript
-<Key extends string>(key: Key | ResourceKeys | number, defaultMsg: string, options: TranslateOptions<Locales>): string;
-```
-
-**Details**
-
-Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
-
-In this overloaded `t`, if no translation was found, return a default message.
-
-You can also suppress the warning, when the translation missing according to the options.
-
-About details of options, see the .
-
-#### Parameters
-
-| Parameter  | Type                                  | Description                                             |
-| ---------- | ------------------------------------- | ------------------------------------------------------- |
-| key        | Key &#124; ResourceKeys &#124; number | A target locale message key                             |
-| defaultMsg | string                                | A default message to return if no translation was found |
-| options    | TranslateOptions&lt;Locales&gt;       | Additional for translation                              |
-
-#### Returns
-
-Translated message
-
-### (key: Key | ResourceKeys | number, list: unknown[]): string;
-
-Locale message translation for list interpolations
-
-**Signature:**
-
-```typescript
-<Key extends string>(key: Key | ResourceKeys | number, list: unknown[]): string;
-```
-
-**Details**
-
-Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
-
-In this overloaded `t`, the locale messages should contain a `{0}`, `{1}`, … for each placeholder in the list.
-
-You can also suppress the warning, when the translation missing according to the options.
-
-**See Also**
-
-- [List interpolation](../../guide/essentials/syntax#list-interpolation)
-
-#### Parameters
-
-| Parameter | Type                                  | Description                    |
-| --------- | ------------------------------------- | ------------------------------ |
-| key       | Key &#124; ResourceKeys &#124; number | A target locale message key    |
-| list      | unknown[]                             | A values of list interpolation |
-
-#### Returns
-
-Translated message
-
-### (key: Key | ResourceKeys | number, list: unknown[], plural: number): string;
-
-Locale message translation for list interpolations and plurals
-
-**Signature:**
-
-```typescript
-<Key extends string>(key: Key | ResourceKeys | number, list: unknown[], plural: number): string;
-```
-
-**Details**
-
-Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
-
-In this overloaded `t`, the locale messages should contain a `{0}`, `{1}`, … for each placeholder in the list, and return a pluralized translation message.
-
-**See Also**
-
-- [Pluralization](../../guide/essentials/pluralization)
-- [List interpolation](../../guide/essentials/syntax#list-interpolation)
-
-#### Parameters
-
-| Parameter | Type                                  | Description                                          |
-| --------- | ------------------------------------- | ---------------------------------------------------- |
-| key       | Key &#124; ResourceKeys &#124; number | A target locale message key                          |
-| list      | unknown[]                             | A values of list interpolation                       |
-| plural    | number                                | Which plural string to get. 1 returns the first one. |
-
-#### Returns
-
-Translated message
-
-### (key: Key | ResourceKeys | number, list: unknown[], defaultMsg: string): string;
-
-Locale message translation for list interpolations and missing default message
-
-**Signature:**
-
-```typescript
-<Key extends string>(key: Key | ResourceKeys | number, list: unknown[], defaultMsg: string): string;
-```
-
-**Details**
-
-Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
-
-In this overloaded `t`, the locale messages should contain a `{0}`, `{1}`, … for each placeholder in the list, and if no translation was found, return a default message.
-
-**See Also**
-
-- [List interpolation](../../guide/essentials/syntax#list-interpolation)
-
-#### Parameters
-
-| Parameter  | Type                                  | Description                                             |
-| ---------- | ------------------------------------- | ------------------------------------------------------- |
-| key        | Key &#124; ResourceKeys &#124; number | A target locale message key                             |
-| list       | unknown[]                             | A values of list interpolation                          |
-| defaultMsg | string                                | A default message to return if no translation was found |
-
-#### Returns
-
-Translated message
-
-### (key: Key | ResourceKeys | number, list: unknown[], options: TranslateOptions&lt;Locales&gt;): string;
-
-Locale message translation for list interpolations
-
-**Signature:**
-
-```typescript
-<Key extends string>(key: Key | ResourceKeys | number, list: unknown[], options: TranslateOptions<Locales>): string;
-```
-
-**Details**
-
-Overloaded `t`. About details, see the [call signature](composition#key-key-resourcekeys-number-string) details.
-
-In this overloaded `t`, the locale messages should contain a `{0}`, `{1}`, … for each placeholder in the list.
-
-You can also suppress the warning, when the translation missing according to the options.
-
-About details of options, see the .
-
-**See Also**
-
-- [List interpolation](../../guide/essentials/syntax#list-interpolation)
-
-#### Parameters
-
-| Parameter | Type                                  | Description                    |
-| --------- | ------------------------------------- | ------------------------------ |
-| key       | Key &#124; ResourceKeys &#124; number | A target locale message key    |
-| list      | unknown[]                             | A values of list interpolation |
-| options   | TranslateOptions&lt;Locales&gt;       | Additional for translation     |
-
-#### Returns
-
-Translated message
-
-## MissingHandler
-
-**Signature:**
-
-```typescript
-export type MissingHandler = (
-  locale: Locale,
-  key: Path,
-  instance?: ComponentInternalInstance,
-  type?: string
-) => string | void
-```
-
-## useI18n
-
-Use Composition API for Vue I18n
-
-**Signature:**
-
-```typescript
-export declare function useI18n<
-  Schema = DefaultLocaleMessageSchema,
-  Locales = 'en-US',
-  Options extends UseI18nOptions<
-    SchemaParams<Schema, VueMessageType>,
-    LocaleParams<Locales>
-  > = UseI18nOptions<
-    SchemaParams<Schema, VueMessageType>,
-    LocaleParams<Locales>
-  >
->(
-  options?: Options
-): Composer<
-  NonNullable<Options['messages']>,
-  NonNullable<Options['datetimeFormats']>,
-  NonNullable<Options['numberFormats']>,
-  NonNullable<Options['locale']>
->
-```
-
-### Type Parameters
-
-| Parameter | Description                                                                   |
-| --------- | ----------------------------------------------------------------------------- |
-| Schema    | The i18n resources (messages, datetimeFormats, numberFormats) schema, default |
-| Locales   | The locales of i18n resource schema, default `en-US`                          |
-
-**Details**
-
-This function is mainly used by `setup`.
-
-If options are specified, Composer instance is created for each component and you can be localized on the component.
-
-If options are not specified, you can be localized using the global Composer.
-
-### Parameters
-
-| Parameter | Type    | Description                                                  |
-| --------- | ------- | ------------------------------------------------------------ |
-| options   | Options | An options, see [UseI18nOptions](composition#usei18noptions) |
-
-### Returns
-
-[Composer](composition#composer) instance
-
-**Examples**
-
-case: Component resource base localization
-
-```html
-<template>
-  <form>
-    <label>{{ t('language') }}</label>
-    <select v-model="locale">
-      <option value="en">en</option>
-      <option value="ja">ja</option>
-    </select>
-  </form>
-  <p>message: {{ t('hello') }}</p>
-</template>
-
-<script>
-  import { useI18n } from 'vue-i18n'
-
-  export default {
-   setup() {
-     const { t, locale } = useI18n({
-       locale: 'ja',
-       messages: {
-         en: { ... },
-         ja: { ... }
-       }
-     })
-     // Something to do ...
-
-     return { ..., t, locale }
-   }
-  }
-</script>
-```
-
-## UseI18nOptions
-
-I18n Options for `useI18n`
-
-**Signature:**
-
-```typescript
-export type UseI18nOptions<
-  Schema extends {
-    message?: unknown
-    datetime?: unknown
-    number?: unknown
-  } = {
-    message: DefaultLocaleMessageSchema
-    datetime: DefaultDateTimeFormatSchema
-    number: DefaultNumberFormatSchema
-  },
-  Locales extends
-    | {
-        messages: unknown
-        datetimeFormats: unknown
-        numberFormats: unknown
-      }
-    | string = Locale,
-  Options extends ComposerOptions<Schema, Locales> = ComposerOptions<
-    Schema,
-    Locales
-  >
-> = ComposerAdditionalOptions & Options
-```
-
-**Details**
-
-`UseI18nOptions` is inherited [ComposerAdditionalOptions](composition#composeradditionaloptions) and [ComposerOptions](composition#composeroptions), so you can specify these options.
-
-**See Also**
-
-- [useI18n](composition#usei18n)
-
-## VueMessageType
-
-**Signature:**
-
-```typescript
-export type VueMessageType = string | ResourceNode | VNode
-```
diff --git a/v11/general.md b/v11/general.md
deleted file mode 100644
index 6d440cfd1..000000000
--- a/v11/general.md
+++ /dev/null
@@ -1,1313 +0,0 @@
-# General
-
-## createI18n
-
-Vue I18n factory
-
-**Signature:**
-
-```typescript
-export declare function createI18n<
-  Schema extends object = DefaultLocaleMessageSchema,
-  Locales extends string | object = 'en-US',
-  Options extends I18nOptions<
-    SchemaParams<Schema, VueMessageType>,
-    LocaleParams<Locales>
-  > = I18nOptions<SchemaParams<Schema, VueMessageType>, LocaleParams<Locales>>,
-  Messages extends Record<string, unknown> = NonNullable<
-    Options['messages']
-  > extends Record<string, unknown>
-    ? NonNullable<Options['messages']>
-    : {},
-  DateTimeFormats extends Record<string, unknown> = NonNullable<
-    Options['datetimeFormats']
-  > extends Record<string, unknown>
-    ? NonNullable<Options['datetimeFormats']>
-    : {},
-  NumberFormats extends Record<string, unknown> = NonNullable<
-    Options['numberFormats']
-  > extends Record<string, unknown>
-    ? NonNullable<Options['numberFormats']>
-    : {},
-  OptionLocale = Options['locale'] extends string ? Options['locale'] : Locale
->(
-  options: Options
-): I18n<Messages, DateTimeFormats, NumberFormats, OptionLocale>
-```
-
-### Type Parameters
-
-| Parameter | Description                                                                   |
-| --------- | ----------------------------------------------------------------------------- |
-| Schema    | The i18n resources (messages, datetimeFormats, numberFormats) schema, default |
-| Locales   | The locales of i18n resource schema, default `en-US`                          |
-
-**See Also**
-
-- [Getting Started](../../guide/essentials/started)
-- [Composition API](../../guide/advanced/composition)
-
-### Parameters
-
-| Parameter | Type    | Description                                            |
-| --------- | ------- | ------------------------------------------------------ |
-| options   | Options | An options, see the [I18nOptions](general#i18noptions) |
-
-### Returns
-
-[I18n](general#i18n) instance
-
-**Examples**
-
-```js
-import { createApp } from 'vue'
-import { createI18n, useI18n } from 'vue-i18n'
-
-// call with I18n option
-const i18n = createI18n({
-  locale: 'ja',
-  messages: {
-    en: { ... },
-    ja: { ... }
-  }
-})
-
-const App = {
-  setup() {
-    // ...
-    const { t } = useI18n({ ... })
-    return { ... , t }
-  }
-}
-
-const app = createApp(App)
-
-// install!
-app.use(i18n)
-app.mount('#app')
-```
-
-## DefineDateTimeFormat
-
-The type definition of datetime format
-
-**Signature:**
-
-```typescript
-export interface DefineDateTimeFormat extends DateTimeFormat
-```
-
-**Details**
-
-The typealias is used to strictly define the type of the Datetime format.
-
-The type defined by this can be used in the global scope.
-
-**Examples**
-
-```ts
-// type.d.ts (`.d.ts` file at your app)
-import { DefineDateTimeFormat } from 'vue-i18n'
-
-declare module 'vue-i18n' {
-  export interface DefineDateTimeFormat {
-    short: {
-      hour: 'numeric'
-      timezone: string
-    }
-  }
-}
-```
-
-## DefineLocaleMessage
-
-The type definition of Locale Message
-
-**Signature:**
-
-```typescript
-export interface DefineLocaleMessage extends LocaleMessage<VueMessageType>
-```
-
-**Details**
-
-The typealias is used to strictly define the type of the Locale message.
-
-The type defined by this can be used in the global scope.
-
-**Examples**
-
-```ts
-// type.d.ts (`.d.ts` file at your app)
-import { DefineLocaleMessage } from 'vue-i18n'
-
-declare module 'vue-i18n' {
-  export interface DefineLocaleMessage {
-    title: string
-    menu: {
-      login: string
-    }
-  }
-}
-```
-
-## DefineNumberFormat
-
-The type definition of number format
-
-**Signature:**
-
-```typescript
-export interface DefineNumberFormat extends NumberFormat
-```
-
-**Details**
-
-The typealias is used to strictly define the type of the Number format.
-
-The type defined by this can be used in the global scope.
-
-**Examples**
-
-```ts
-// type.d.ts (`.d.ts` file at your app)
-import { DefineNumberFormat } from 'vue-i18n'
-
-declare module 'vue-i18n' {
-  export interface DefineNumberFormat {
-    currency: {
-      style: 'currency'
-      currencyDisplay: 'symbol'
-      currency: string
-    }
-  }
-}
-```
-
-## ExportedGlobalComposer
-
-Exported global composer instance
-
-**Signature:**
-
-```typescript
-export interface ExportedGlobalComposer
-```
-
-**Details**
-
-This interface is the [global composer](general#global) that is provided interface that is injected into each component with `app.config.globalProperties`.
-
-### availableLocales
-
-Available locales
-
-**Signature:**
-
-```typescript
-readonly availableLocales: Locale[];
-```
-
-**Details**
-
-This property is proxy-like property for `Composer#availableLocales`. About details, see the [Composer#availableLocales](composition#availablelocales)
-
-### fallbackLocale
-
-Fallback locale
-
-**Signature:**
-
-```typescript
-fallbackLocale: FallbackLocale
-```
-
-**Details**
-
-This property is proxy-like property for `Composer#fallbackLocale`. About details, see the [Composer#fallbackLocale](composition#fallbacklocale)
-
-### locale
-
-Locale
-
-**Signature:**
-
-```typescript
-locale: Locale
-```
-
-**Details**
-
-This property is proxy-like property for `Composer#locale`. About details, see the [Composer#locale](composition#locale)
-
-## I18n
-
-I18n instance
-
-**Signature:**
-
-```typescript
-export interface I18n<Messages extends Record<string, unknown> = {}, DateTimeFormats extends Record<string, unknown> = {}, NumberFormats extends Record<string, unknown> = {}, OptionLocale = Locale>
-```
-
-**Details**
-
-The instance required for installation as the Vue plugin
-
-### global
-
-The property accessible to the global Composer instance
-
-An instance of this property is **global scope\***.
-
-**Signature:**
-
-```typescript
-readonly global: Composer<Messages, DateTimeFormats, NumberFormats, OptionLocale>;
-```
-
-### dispose()
-
-Release global scope resource
-
-**Signature:**
-
-```typescript
-dispose(): void;
-```
-
-#### Parameters
-
-| Parameter | Type | Description |
-| --------- | ---- | ----------- |
-
-### install(app, options)
-
-Install entry point
-
-**Signature:**
-
-```typescript
-install(app: App, ...options: unknown[]): void;
-```
-
-#### Parameters
-
-| Parameter | Type      | Description               |
-| --------- | --------- | ------------------------- |
-| app       | App       | A target Vue app instance |
-| options   | unknown[] | An install options        |
-
-## I18nAdditionalOptions
-
-I18n Additional Options
-
-**Signature:**
-
-```typescript
-export interface I18nAdditionalOptions
-```
-
-**Details**
-
-Specific options for
-
-### globalInjection
-
-Whether to inject global properties & functions into for each component.
-
-**Signature:**
-
-```typescript
-globalInjection?: boolean;
-```
-
-**Details**
-
-If set to `true`, then properties and methods prefixed with `$` are injected into Vue Component.
-
-**Default Value**
-
-`true`
-
-**See Also**
-
-- [Implicit with injected properties and functions](../../guide/advanced/composition#implicit-with-injected-properties-and-functions)
-- [ComponentCustomProperties](injection#componentcustomproperties)
-
-## I18nOptions
-
-I18n Options for `createI18n`
-
-**Signature:**
-
-```typescript
-export type I18nOptions<
-  Schema extends {
-    message?: unknown
-    datetime?: unknown
-    number?: unknown
-  } = {
-    message: DefaultLocaleMessageSchema
-    datetime: DefaultDateTimeFormatSchema
-    number: DefaultNumberFormatSchema
-  },
-  Locales extends
-    | {
-        messages: unknown
-        datetimeFormats: unknown
-        numberFormats: unknown
-      }
-    | string = Locale,
-  Options = ComposerOptions<Schema, Locales>
-> = I18nAdditionalOptions & Options
-```
-
-## I18nPluginOptions
-
-Vue I18n plugin options
-
-**Signature:**
-
-```typescript
-export interface I18nPluginOptions
-```
-
-**Details**
-
-An options specified when installing Vue I18n as Vue plugin with using `app.use`.
-
-### globalInstall
-
-Whether to globally install the components that is offered by Vue I18n
-
-**Signature:**
-
-```typescript
-globalInstall?: boolean;
-```
-
-**Details**
-
-If this option is enabled, the components will be installed globally at `app.use` time.
-
-If you want to install manually in the `import` syntax, you can set it to `false` to install when needed.
-
-**Default Value**
-
-`true`
-
-## I18nScope
-
-I18n Scope
-
-**Signature:**
-
-```typescript
-export type I18nScope = 'local' | 'parent' | 'global'
-```
-
-**See Also**
-
-- [ComposerAdditionalOptions#useScope](composition#usescope)
-- [useI18n](composition#usei18n)
-
-## VERSION
-
-Vue I18n Version
-
-**Signature:**
-
-```typescript
-VERSION: string
-```
-
-**Details**
-
-Semver format. Same format as the package.json `version` field.
-
-## DateTimeOptions
-
-DateTime options
-
-**Signature:**
-
-```typescript
-export interface DateTimeOptions<Key = string, Locales = Locale> extends Intl.DateTimeFormatOptions, LocaleOptions<Locales>
-```
-
-**Details**
-
-Options for Datetime formatting API
-
-### fallbackWarn
-
-**Signature:**
-
-```typescript
-fallbackWarn?: boolean;
-```
-
-**Details**
-
-Whether do resolve on format keys when your language lacks a formatting for a key
-
-### key
-
-**Signature:**
-
-```typescript
-key?: Key;
-```
-
-**Details**
-
-The target format key
-
-### missingWarn
-
-**Signature:**
-
-```typescript
-missingWarn?: boolean;
-```
-
-**Details**
-
-Whether suppress warnings outputted when localization fails
-
-### part
-
-**Signature:**
-
-```typescript
-part?: boolean;
-```
-
-**Details**
-
-Whether to use [Intel.DateTimeFormat#formatToParts](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/formatToParts)
-
-## DefineCoreLocaleMessage
-
-The type definition of Locale Message for `@intlify/core-base` package
-
-**Signature:**
-
-```typescript
-export interface DefineCoreLocaleMessage extends LocaleMessage<string>
-```
-
-**Details**
-
-The typealias is used to strictly define the type of the Locale message.
-
-**Examples**
-
-```ts
-// type.d.ts (`.d.ts` file at your app)
-import { DefineCoreLocaleMessage } from '@intlify/core-base'
-
-declare module '@intlify/core-base' {
-  export interface DefineCoreLocaleMessage {
-    title: string
-    menu: {
-      login: string
-    }
-  }
-}
-```
-
-## FallbackLocale
-
-**Signature:**
-
-```typescript
-export type FallbackLocale =
-  | Locale
-  | Locale[]
-  | {
-      [locale in string]: Locale[]
-    }
-  | false
-```
-
-## fallbackWithLocaleChain
-
-Fallback with locale chain
-
-**Signature:**
-
-```typescript
-export declare function fallbackWithLocaleChain<Message = string>(
-  ctx: CoreContext<Message>,
-  fallback: FallbackLocale,
-  start: Locale
-): Locale[]
-```
-
-**Details**
-
-A fallback locale function implemented with a fallback chain algorithm. It's used in VueI18n as default.
-
-**See Also**
-
-- [Fallbacking](../../guide/essentials/fallback)
-
-### Parameters
-
-| Parameter | Type                       | Description                                 |
-| --------- | -------------------------- | ------------------------------------------- |
-| ctx       | CoreContext&lt;Message&gt; | A [context](#corecontext)                   |
-| fallback  | FallbackLocale             | A [fallback locale](general#fallbacklocale) |
-| start     | Locale                     | A starting [locale](general#locale)         |
-
-### Returns
-
-Fallback locales
-
-## fallbackWithSimple
-
-Fallback with simple implemenation
-
-**Signature:**
-
-```typescript
-export declare function fallbackWithSimple<Message = string>(
-  ctx: CoreContext<Message>,
-  fallback: FallbackLocale,
-  start: Locale
-): Locale[]
-```
-
-**Details**
-
-A fallback locale function implemented with a simple fallback algorithm.
-
-Basically, it returns the value as specified in the `fallbackLocale` props, and is processed with the fallback inside intlify.
-
-### Parameters
-
-| Parameter | Type                       | Description                                 |
-| --------- | -------------------------- | ------------------------------------------- |
-| ctx       | CoreContext&lt;Message&gt; | A [context](#corecontext)                   |
-| fallback  | FallbackLocale             | A [fallback locale](general#fallbacklocale) |
-| start     | Locale                     | A starting [locale](general#locale)         |
-
-### Returns
-
-Fallback locales
-
-## LinkedModifiers
-
-**Signature:**
-
-```typescript
-export type LinkedModifiers<T = string> = {
-  [key: string]: LinkedModify<T>
-}
-```
-
-## Locale
-
-**Signature:**
-
-```typescript
-export type Locale =
-  IsNever<GeneratedLocale> extends true ? string : GeneratedLocale
-```
-
-## LocaleDetector
-
-**Signature:**
-
-```typescript
-export interface LocaleDetector<Args extends any[] = any[]>
-```
-
-### resolvedOnce
-
-### (...args: Args): Locale | Promise&lt;Locale&gt;;
-
-## LocaleFallbacker
-
-The locale fallbacker
-
-**Signature:**
-
-```typescript
-export type LocaleFallbacker = <Message = string>(
-  ctx: CoreContext<Message>,
-  fallback: FallbackLocale,
-  start: Locale
-) => Locale[]
-```
-
-## LocaleMessage
-
-**Signature:**
-
-```typescript
-export type LocaleMessage<Message = string> = Record<
-  string,
-  LocaleMessageValue<Message>
->
-```
-
-## LocaleMessageDictionary
-
-**Signature:**
-
-```typescript
-export type LocaleMessageDictionary<T, Message = string> = {
-  [K in keyof T]: LocaleMessageType<T[K], Message>
-}
-```
-
-## LocaleMessages
-
-**Signature:**
-
-```typescript
-export type LocaleMessages<
-  Schema,
-  Locales = Locale,
-  Message = string
-> = LocaleRecord<UnionToTuple<Locales>, Schema>
-```
-
-## LocaleMessageType
-
-**Signature:**
-
-```typescript
-export type LocaleMessageType<T, Message = string> = T extends string
-  ? string
-  : T extends () => Promise<infer P>
-    ? LocaleMessageDictionary<P, Message>
-    : T extends (...args: infer Arguments) => any
-      ? (...args: Arguments) => ReturnType<T>
-      : T extends Record<string, unknown>
-        ? LocaleMessageDictionary<T, Message>
-        : T extends Array<T>
-          ? {
-              [K in keyof T]: T[K]
-            }
-          : T
-```
-
-## LocaleMessageValue
-
-**Signature:**
-
-```typescript
-export type LocaleMessageValue<Message = string> =
-  | LocaleMessageDictionary<any, Message>
-  | string
-```
-
-## LocaleOptions
-
-**Signature:**
-
-```typescript
-export interface LocaleOptions<Locales = Locale>
-```
-
-### locale
-
-**Signature:**
-
-```typescript
-locale?: Locales | LocaleDetector;
-```
-
-**Details**
-
-The locale of localization
-
-## MessageCompiler
-
-The message compiler
-
-**Signature:**
-
-```typescript
-export type MessageCompiler<
-  Message = string,
-  MessageSource = string | ResourceNode
-> = (
-  message: MessageSource,
-  context: MessageCompilerContext
-) => MessageFunction<Message>
-```
-
-## MessageCompilerContext
-
-The context that will pass the message compiler.
-
-**Signature:**
-
-```typescript
-export type MessageCompilerContext = Pick<
-  CompileOptions,
-  'onError' | 'onCacheKey'
-> & {
-  warnHtmlMessage?: boolean
-  key: string
-  locale: Locale
-}
-```
-
-## MessageContext
-
-The message context.
-
-**Signature:**
-
-```typescript
-export interface MessageContext<T = string>
-```
-
-### type
-
-The message type to be handled by the message function.
-
-**Signature:**
-
-```typescript
-type: string
-```
-
-**Details**
-
-Usually `text`, you need to return **string** in message function.
-
-### values
-
-The message values.
-
-**Signature:**
-
-```typescript
-values: Record<string, unknown>
-```
-
-**Details**
-
-The message values are the argument values passed from translation function, such as `$t`, `t`, or `translate`.
-
-**Examples**
-
-vue-i18n `$t` (or `t`) case:
-
-```html
-<p>{{ $t('greeting', { name: 'DIO' }) }}</p>
-<!-- `{ name: 'DIO' }` is message values -->
-```
-
-`@intlify/core` (`@intlify/core-base`) `translate` case:
-
-```js
-translate(context, 'foo.bar', ['dio']) // `['dio']` is message values
-```
-
-### linked(key, modifier)
-
-Resolve linked message.
-
-**Signature:**
-
-```typescript
-linked(key: Path, modifier?: string): MessageType<T>;
-```
-
-#### Parameters
-
-| Parameter | Type   | Description   |
-| --------- | ------ | ------------- |
-| key       | Path   | A message key |
-| modifier  | string | A modifier    |
-
-#### Returns
-
-A resolve message.
-
-### linked(key, modifier, type)
-
-Overloaded `linked`
-
-**Signature:**
-
-```typescript
-linked(key: Path, modifier?: string, type?: string): MessageType<T>;
-```
-
-#### Parameters
-
-| Parameter | Type   | Description    |
-| --------- | ------ | -------------- |
-| key       | Path   | A message key  |
-| modifier  | string | A modifier     |
-| type      | string | A message type |
-
-#### Returns
-
-A resolve message.
-
-### linked(key, optoins)
-
-Overloaded `linked`
-
-**Signature:**
-
-```typescript
-linked(key: Path, optoins?: LinkedOptions): MessageType<T>;
-```
-
-#### Parameters
-
-| Parameter | Type          | Description                         |
-| --------- | ------------- | ----------------------------------- |
-| key       | Path          | A message key                       |
-| optoins   | LinkedOptions | An [linked options](#linkedoptions) |
-
-#### Returns
-
-A resolve message.
-
-### list(index)
-
-Resolve message value from list.
-
-**Signature:**
-
-```typescript
-list(index: number): unknown;
-```
-
-#### Parameters
-
-| Parameter | Type   | Description                 |
-| --------- | ------ | --------------------------- |
-| index     | number | An index of message values. |
-
-#### Returns
-
-A resolved message value.
-
-**Examples**
-
-```js
-const messages = {
-  en: {
-    greeting: ({ list }) => `hello, ${list(0)}!`
-  }
-}
-```
-
-### named(key)
-
-Resolve message value from named.
-
-**Signature:**
-
-```typescript
-named(key: string): unknown;
-```
-
-#### Parameters
-
-| Parameter | Type   | Description             |
-| --------- | ------ | ----------------------- |
-| key       | string | A key of message value. |
-
-#### Returns
-
-A resolved message value.
-
-**Examples**
-
-```js
-const messages = {
-  en: {
-    greeting: ({ named }) => `hello, ${named('name')}!`
-  }
-}
-```
-
-### plural(messages)
-
-Resolve message with plural index.
-
-**Signature:**
-
-```typescript
-plural(messages: T[]): T;
-```
-
-**Details**
-
-That's resolved with plural index with translation function.
-
-#### Parameters
-
-| Parameter | Type | Description                                                                 |
-| --------- | ---- | --------------------------------------------------------------------------- |
-| messages  | T[]  | the messages, that is resolved with plural index with translation function. |
-
-#### Returns
-
-A resolved message.
-
-**Examples**
-
-```js
-const messages = {
-  en: {
-    car: ({ plural }) => plural(['car', 'cars']),
-    apple: ({ plural, named }) =>
-      plural(['no apples', 'one apple', `${named('count')} apples`])
-  }
-}
-```
-
-## MessageFunction
-
-The Message Function.
-
-**Signature:**
-
-```typescript
-export type MessageFunction<T = string> =
-  | MessageFunctionCallable
-  | MessageFunctionInternal<T>
-```
-
-## MessageFunctionReturn
-
-**Signature:**
-
-```typescript
-export type MessageFunctionReturn<T = string> = T extends string
-  ? MessageType<T>
-  : MessageType<T>[]
-```
-
-## MessageResolver
-
-**Signature:**
-
-```typescript
-export type MessageResolver = (obj: unknown, path: Path) => PathValue
-```
-
-## NamedValue
-
-**Signature:**
-
-```typescript
-export type NamedValue<T = {}> = T & Record<string, unknown>
-```
-
-## NumberOptions
-
-Number Options
-
-**Signature:**
-
-```typescript
-export interface NumberOptions<Key = string, Locales = Locale> extends Intl.NumberFormatOptions, LocaleOptions<Locales>
-```
-
-**Details**
-
-Options for Number formatting API
-
-### fallbackWarn
-
-**Signature:**
-
-```typescript
-fallbackWarn?: boolean;
-```
-
-**Details**
-
-Whether do resolve on format keys when your language lacks a formatting for a key
-
-### key
-
-**Signature:**
-
-```typescript
-key?: Key;
-```
-
-**Details**
-
-The target format key
-
-### missingWarn
-
-**Signature:**
-
-```typescript
-missingWarn?: boolean;
-```
-
-**Details**
-
-Whether suppress warnings outputted when localization fails
-
-### part
-
-**Signature:**
-
-```typescript
-part?: boolean;
-```
-
-**Details**
-
-Whether to use [Intel.NumberFormat#formatToParts](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/formatToParts)
-
-## Path
-
-**Signature:**
-
-```typescript
-export type Path = string
-```
-
-## PathValue
-
-**Signature:**
-
-```typescript
-export type PathValue =
-  | string
-  | number
-  | boolean
-  | Function
-  | null
-  | {
-      [key: string]: PathValue
-    }
-  | PathValue[]
-```
-
-## PluralizationRules
-
-**Signature:**
-
-```typescript
-export type PluralizationRules = {
-  [locale: string]: PluralizationRule
-}
-```
-
-## PostTranslationHandler
-
-**Signature:**
-
-```typescript
-export type PostTranslationHandler<Message = string> = (
-  translated: MessageFunctionReturn<Message>,
-  key: string
-) => MessageFunctionReturn<Message>
-```
-
-## registerLocaleFallbacker
-
-Register the locale fallbacker
-
-**Signature:**
-
-```typescript
-export declare function registerLocaleFallbacker(
-  fallbacker: LocaleFallbacker
-): void
-```
-
-### Parameters
-
-| Parameter  | Type             | Description                                             |
-| ---------- | ---------------- | ------------------------------------------------------- |
-| fallbacker | LocaleFallbacker | A [LocaleFallbacker](general#localefallbacker) function |
-
-## registerMessageResolver
-
-Register the message resolver
-
-**Signature:**
-
-```typescript
-export declare function registerMessageResolver(resolver: MessageResolver): void
-```
-
-### Parameters
-
-| Parameter | Type            | Description                                           |
-| --------- | --------------- | ----------------------------------------------------- |
-| resolver  | MessageResolver | A [MessageResolver](general#messageresolver) function |
-
-## resolveValue
-
-message resolver
-
-**Signature:**
-
-```typescript
-export declare function resolveValue(obj: unknown, path: Path): PathValue
-```
-
-**Details**
-
-Resolves messages. messages with a hierarchical structure such as objects can be resolved. This resolver is used in VueI18n as default.
-
-### Parameters
-
-| Parameter | Type    | Description                                            |
-| --------- | ------- | ------------------------------------------------------ |
-| obj       | unknown | A target object to be resolved with path               |
-| path      | Path    | A [path](general#path) to resolve the value of message |
-
-### Returns
-
-A resolved [path value](general#pathvalue)
-
-## resolveWithKeyValue
-
-key-value message resolver
-
-**Signature:**
-
-```typescript
-export declare function resolveWithKeyValue(obj: unknown, path: Path): PathValue
-```
-
-**Details**
-
-Resolves messages with the key-value structure. Note that messages with a hierarchical structure such as objects cannot be resolved
-
-### Parameters
-
-| Parameter | Type    | Description                                            |
-| --------- | ------- | ------------------------------------------------------ |
-| obj       | unknown | A target object to be resolved with path               |
-| path      | Path    | A [path](general#path) to resolve the value of message |
-
-### Returns
-
-A resolved [path value](general#pathvalue)
-
-## TranslateOptions
-
-Translate Options
-
-**Signature:**
-
-```typescript
-export interface TranslateOptions<Locales = Locale> extends LocaleOptions<Locales>
-```
-
-**Details**
-
-Options for Translation API
-
-### default
-
-**Signature:**
-
-```typescript
-default?: string | boolean;
-```
-
-**Details**
-
-Default message when is occurred translation missing
-
-### escapeParameter
-
-**Signature:**
-
-```typescript
-escapeParameter?: boolean;
-```
-
-**Details**
-
-Whether do escape parameter for list or named interpolation values
-
-### fallbackWarn
-
-**Signature:**
-
-```typescript
-fallbackWarn?: boolean;
-```
-
-**Details**
-
-Whether do template interpolation on translation keys when your language lacks a translation for a key
-
-### list
-
-**Signature:**
-
-```typescript
-list?: unknown[];
-```
-
-**Details**
-
-List interpolation
-
-### missingWarn
-
-**Signature:**
-
-```typescript
-missingWarn?: boolean;
-```
-
-**Details**
-
-Whether suppress warnings outputted when localization fails
-
-### named
-
-**Signature:**
-
-```typescript
-named?: NamedValue;
-```
-
-**Details**
-
-Named interpolation
-
-### plural
-
-**Signature:**
-
-```typescript
-plural?: number;
-```
-
-**Details**
-
-Plulralzation choice number
-
-### resolvedMessage
-
-**Signature:**
-
-```typescript
-resolvedMessage?: boolean;
-```
-
-**Details**
-
-Whether the message has been resolved

From 93f1aa901cc9168ece303d1e1a8d03f5ad594704 Mon Sep 17 00:00:00 2001
From: kazuya kawaguchi <kawakazu80@gmail.com>
Date: Tue, 17 Jun 2025 00:36:20 +0900
Subject: [PATCH 4/4] fix

---
 packages/vue-i18n-core/src/i18n.ts                          | 2 +-
 packages/vue-i18n-core/test/__snapshots__/i18n.test.ts.snap | 2 --
 packages/vue-i18n-core/test/i18n.test.ts                    | 4 ++--
 3 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/packages/vue-i18n-core/src/i18n.ts b/packages/vue-i18n-core/src/i18n.ts
index 13e44194b..75cb6e39f 100644
--- a/packages/vue-i18n-core/src/i18n.ts
+++ b/packages/vue-i18n-core/src/i18n.ts
@@ -773,7 +773,7 @@ export function useI18n<
 
     i18nInternal.__setInstance(instance, composer)
   } else {
-    if (scope === 'local') {
+    if (__DEV__ && scope === 'local') {
       throw createI18nError(I18nErrorCodes.DUPLICATE_USE_I18N_CALLING)
     }
   }
diff --git a/packages/vue-i18n-core/test/__snapshots__/i18n.test.ts.snap b/packages/vue-i18n-core/test/__snapshots__/i18n.test.ts.snap
index f7712a7da..d2ba3da67 100644
--- a/packages/vue-i18n-core/test/__snapshots__/i18n.test.ts.snap
+++ b/packages/vue-i18n-core/test/__snapshots__/i18n.test.ts.snap
@@ -7,5 +7,3 @@ exports[`slot reactivity > composable > ja 1`] = `"<h1>Root</h1><form><select><o
 exports[`slot reactivity > legacy > en 1`] = `"<h1>Root</h1><form><select><option value="en">en</option><option value="ja">ja</option></select></form><p>hello!</p><div class="child"><h1>Child</h1><form><select><option value="en">en</option><option value="ja">ja</option></select></form><p>hello!</p><div class="sub-child"><h1>Sub Child</h1><form><select><option value="en">en</option><option value="ja">ja</option></select></form><p>hello!</p></div> $t inside of slot <p>hello!</p> i18n-t inside of slot <p>hello!</p></div>"`;
 
 exports[`slot reactivity > legacy > ja 1`] = `"<h1>Root</h1><form><select><option value="en">en</option><option value="ja">ja</option></select></form><p>こんにちは！</p><div class="child"><h1>Child</h1><form><select><option value="en">en</option><option value="ja">ja</option></select></form><p>こんにちは！</p><div class="sub-child"><h1>Sub Child</h1><form><select><option value="en">en</option><option value="ja">ja</option></select></form><p>こんにちは！</p></div> $t inside of slot <p>こんにちは！</p> i18n-t inside of slot <p>こんにちは！</p></div>"`;
-
-exports[`useI18n > Duplicate \`useI18n\` calling by local scope. Please don't call it on local scope 1`] = `"<h1>Root</h1><form><select><option value="en">en</option><option value="ja">ja</option></select></form><p>hi!</p><p></p><p>Duplicate \`useI18n\` calling by local scope. Please don't call it on local scope</p>"`;
diff --git a/packages/vue-i18n-core/test/i18n.test.ts b/packages/vue-i18n-core/test/i18n.test.ts
index f69ddbe47..9707cb07f 100644
--- a/packages/vue-i18n-core/test/i18n.test.ts
+++ b/packages/vue-i18n-core/test/i18n.test.ts
@@ -679,8 +679,8 @@ describe('useI18n', () => {
           <p>{{ error }}</p>
       `
     })
-    const { html } = await mount(App, i18n as any) // eslint-disable-line @typescript-eslint/no-explicit-any
-    expect(html()).toMatchSnapshot()
+    await mount(App, i18n as any) // eslint-disable-line @typescript-eslint/no-explicit-any
+    expect(error).toBe(errorMessages[I18nErrorCodes.DUPLICATE_USE_I18N_CALLING])
   })
 })