import type { CouchDbUserDoc } from '@vue-skuilder/db';
/**
 * Find user document by username.
 */
export declare function findUserByUsername(username: string): Promise<CouchDbUserDoc | null>;
/**
 * Get user's email from their personal database CONFIG document.
 */
export declare function getUserEmail(username: string): Promise<string | null>;
/**
 * Find user by verification or password reset token using design doc views.
 */
export declare function findUserByToken(token: string, tokenType: 'verification' | 'reset'): Promise<CouchDbUserDoc | null>;
/**
 * Find user by email using design doc view.
 */
export declare function findUserByEmail(email: string): Promise<CouchDbUserDoc | null>;
/**
 * Update user document in _users database.
 */
export declare function updateUserDoc(userDoc: CouchDbUserDoc): Promise<void>;
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