import { EmailProvider, IEmailProvider, VoidResponsePromise } from './interfaces';
export declare namespace email {
    function initialize(provider: EmailProvider): void;
    function send(recipient_email: string, subject: string, body: string, callback: (err?: Error) => void): void;
}
export declare namespace emailProvider {
    function initialize(provider: IEmailProvider): void;
    function send(recipient_email: string, subject: string, body: string): VoidResponsePromise;
}