interface ErrorInjection {
	failAfter(n: number, error?: Error): void;
	failOn(pattern: RegExp, error?: Error): void;
	withLatency(minMs: number, maxMs?: number): void;
	clearInjections(): void;
}
interface MockOperation {
	type: "read" | "write" | "delete" | "list";
	key?: string;
	timestamp: number;
}
interface MockOperations {
	operations: MockOperation[];
	reads(): MockOperation[];
	writes(): MockOperation[];
	deletes(): MockOperation[];
	reset(): void;
}
interface MockMessage {
	body: unknown;
	contentType?: string;
}
/**
* In-memory Queue mock for unit testing.
*/
declare function createMockQueue(): Queue & {
	_messages: MockMessage[];
} & MockOperations & ErrorInjection;
export { createMockQueue };