import { CreateEmailRequest, DraftEmail, Email } from '../models/types';
import { EmailTransporter } from '../transporters/EmailTransporter';
export declare class EmailClient {
    private transporter;
    constructor(transporter: EmailTransporter);
    /**
     * Send an email using the configured transporter.
     * @param email The email object.
     * @returns The result email object.
     */
    sendEmail(email: DraftEmail | CreateEmailRequest): Promise<Email>;
    /**
     * Switch the transporter at runtime.
     * @param transporter The new transporter to use.
     */
    setTransporter(transporter: EmailTransporter): void;
}