import type { FrameContext, WorkerUpdateFn, WorkerUpdateOptions } from '../types.js';
/** Internal transport behind a worker update: one `tick` sink + teardown. */
export interface WorkerUpdateBridge {
    tick(ctx: FrameContext): void;
    terminate(): void;
}
/** Test seam: `forceFallback` skips Worker construction (used by the smoke test). */
export interface WorkerBridgeInternals {
    forceFallback?: boolean;
}
/**
 * Wire a serialized handler to a dedicated worker (or the microtask fallback).
 * One bridge per registered update; `createFrameLoop` owns the lifecycle.
 */
export declare function createWorkerUpdateBridge<S>(fn: WorkerUpdateFn<S>, options?: WorkerUpdateOptions<S>, internals?: WorkerBridgeInternals): WorkerUpdateBridge;
//# sourceMappingURL=frame-loop-worker.d.ts.map