export interface DocumentOtpEmailContext {
    recipient_name: string;
    document_title: string;
    document_category: string;
    otp: string;
    expires_in_minutes: number;
    requester_ip?: string | null;
}
export declare function buildDocumentOtpEmail(ctx: DocumentOtpEmailContext): {
    subject: string;
    html: string;
};