import type { TtscUnpluginOptions } from "./core/options";
/**
 * Register the ttsc transform as a Bun **runtime** plugin.
 *
 * The other `@ttsc/unplugin/*` adapters cover bundlers (`Bun.build`, Vite,
 * Webpack, …). This entry is the runtime counterpart: loading it registers the
 * same transform on Bun's module loader, so `bun run` / `bun test` apply ttsc
 * plugins (e.g. typia's `typia/lib/transform`) as files are imported, with no
 * bundling step. Wire it up once via a `bunfig.toml` preload entry — `preload =
 * ["@ttsc/unplugin/bun-register"]` — or imperatively with `import
 * "@ttsc/unplugin/bun-register"`. Options are read from the nearest
 * `tsconfig.json`, identical to the bundler adapters.
 *
 * The first call registers one loader. Calls before its first transformable
 * TypeScript load use last-call-wins and capture options by value, so an
 * explicit call right after importing this module replaces the preload defaults
 * without installing a shadowing loader. Entering the first such load locks
 * that snapshot synchronously. Later calls with a structurally identical value
 * are idempotent; a different value throws rather than pretending a resolved
 * loader changed configuration.
 *
 * @throws When called explicitly off the Bun runtime, when options are not
 *   structured-cloneable, or when a different option value is supplied after
 *   the first load. The auto-registration below stays silent off Bun so the
 *   module is harmless to import from Node (tests, tooling).
 */
export declare function register(options?: TtscUnpluginOptions): void;
export default register;