import type { EmailQueue } from "./index.mjs";
export interface MemoryQueueOptions {
	/** Maximum items allowed in the queue. Defaults to \`Infinity\`. */
	maxSize?: number;
	/** Clock source — injected for tests. Default: \`Date.now\`. */
	now?: () => number;
}
/** Simple in-memory queue. Fine for single-instance servers and tests.
*  For multi-process deployments use the unstorage adapter or plug a
*  SaaS driver (QStash, SQS). */
export declare function memoryQueue(options?: MemoryQueueOptions): EmailQueue;
export default memoryQueue;