import { Twilio } from "twilio";
import { BaseAccount, MessengerClient } from "./MessengerClient";
export interface TwilioAccount extends BaseAccount<Twilio> {
    options: {
        /**
         * Default sender phone number
         */
        defaultSender: string;
    };
}
export declare class TwilioClient extends MessengerClient<TwilioAccount> {
    constructor();
    /**
     * Sends a SMS using one of the registered accounts.
     *
     * @param accountName Account name
     * @param to Recipient phone number
     * @param body SMS content
     * @param options.from Twilio phone number
     */
    sendSms(accountName: string, to: string, body: string, { from }?: {
        from?: string;
    }): Promise<void>;
    /**
     * Adds an account to send email with.
     *
     * @param name Account name
     * @param accountSid Twilio account sid
     * @param authToken Twilio auth token
     * @param defaultSender Default number to send SMS
     */
    addAccount(name: string, accountSid: string, authToken: string, defaultSender: string): void;
    protected _createAccount(name: string, accountSid: string, authToken: string, defaultSender: string): {
        name: string;
        client: import("twilio/lib/rest/Twilio");
        options: {
            defaultSender: string;
        };
    };
    private sendMessage;
}