Function i18nFor

i18nFor(context: CallbackContext): I18nSession | undefined
Retrieves the i18n session attached to a context by the i18n plugin.
Parameters
- context: CallbackContext
  The callback context of the current update.
Returns I18nSession | undefined
The session, or undefined if the plugin is not installed.
Example
```
app.on("message", async (update, context) => {
  const t = i18nFor(context)?.t("hello", { name: "Nam" });
  await context.reply(t ?? "no i18n");
});
```