export declare class UserNotificationPreference {
    id: string;
    user_id: string;
    tenant_id: string;
    email_enabled: boolean;
    push_enabled: boolean;
    in_app_enabled: boolean;
    sms_enabled: boolean;
    category_preferences: Record<string, boolean> | null;
    marketing_emails: boolean;
    product_updates: boolean;
    security_alerts: boolean;
    created_at: Date;
    updated_at: Date;
}