import { RequestClient } from '@segment/actions-core';
import DDApi from '../dd-api';
declare class DDEmailApi extends DDApi {
    constructor(api_host: string, client: RequestClient);
    sendTransactionalEmail(payload: {
        toAddresses: string;
        ccAddresses?: string;
        bccAddresses?: string;
        subject: string;
        fromAddress: string;
        htmlContent: string;
        plainTextContent?: string;
    }): Promise<import("@segment/actions-core").ModifiedResponse<unknown>>;
}
export default DDEmailApi;