import { vi } from 'vitest';
/**
 * Build a no-op Redis-like client stub (connection tests without IORedis).
 *
 * @returns Minimal async map with `get` / `set` / `quit` spies.
 */
export declare function createRedisMock(): {
    get: ReturnType<typeof vi.fn>;
    set: ReturnType<typeof vi.fn>;
    del: ReturnType<typeof vi.fn>;
    quit: ReturnType<typeof vi.fn>;
};
/**
 * Minimal SMTP transport stub for mail integration tests.
 *
 * @returns Object with `sendMail` spy.
 */
export declare function createSmtpMock(): {
    sendMail: ReturnType<typeof vi.fn>;
};
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