export declare function sendEmailByTai({ prefix, paasId, paasToken, from, to, title, content, cc, bcc, emailType, bodyFormat, priority, }: {
    prefix: string;
    paasId: string;
    paasToken: string;
    from: string;
    to: string;
    title: string;
    content: string;
    cc?: string;
    bcc?: string;
    emailType?: number;
    bodyFormat?: number;
    priority?: number;
}): Promise<unknown>;