/**
* Next.js helpers: tag-invalidation hook + a small `tag()` builder.
*
* Wires misina's per-request `meta.invalidates` to Next.js's
* `revalidateTag()` so a successful mutation triggers cache
* invalidation in one line:
*
* ```ts
* import { onTagInvalidate, tag } from "misina/runtime/next"
* import { revalidateTag } from "next/cache"
*
* const api = onTagInvalidate(createMisina({ baseURL }), revalidateTag)
*
* await api.post("/users", body, {
*   meta: { invalidates: [tag("users", "list"), tag("user", "by-id", "42")] },
* })
* // → revalidateTag('users:list') and revalidateTag('user:by-id:42') after success
* ```
*
* Only fires on successful (non-error) responses to avoid invalidating
* caches on a transient failure.
*/
import type { Misina } from "../../types.mjs";
declare module "../../types.ts" {
	interface MisinaMeta {
		/**
		* Tags to invalidate after a successful response. Wired up by
		* `onTagInvalidate(misina, revalidateTag)` from `misina/runtime/next`.
		*/
		invalidates?: string[];
	}
}
export type RevalidateTagFn = (tag: string) => void | Promise<void>;
export declare function onTagInvalidate(misina: Misina, revalidateTag: RevalidateTagFn): Misina;
/**
* Compose a hierarchical tag string by joining parts with `:`. Pure
* helper — use whatever delimiter style your team already prefers.
*/
export declare function tag(...parts: string[]): string;