import type { EmailLogger } from "./utils/logger.js";
/**
 * Get the UID store file path for an account
 */
export declare function getUidStorePath(accountId: string): string;
/**
 * Read the last processed UID from the store
 * @returns The last UID or null if store doesn't exist
 */
export declare function readEmailUidStore(accountId: string, log?: EmailLogger): Promise<number | null>;
/**
 * Write a UID to the store
 */
export declare function writeEmailUidStore(accountId: string, uid: number, log?: EmailLogger): Promise<void>;