import { TermiiCore } from '../../../api';
import { ISendMessageResponse, ISendMessage, ISendBulkMessage, ISendBulkMessageResponse } from '../../../interfaces/message';
/**
 * The Message class extends the TermiiCore class and provides methods for sending messages.
 * @class Message
 * @extends {TermiiCore}
 */
export declare class Message extends TermiiCore {
    /**
     * Constructs a new Message instance with the provided API key.
     * @constructor
     * @param {string} apiKey - The API key used for authorization.
     */
    constructor(apiKey: string);
    /**
     * Sends a single message using the Termii API.
     * @param {ISendMessage} data - The message data to be sent.
     * @returns {Promise<ISendMessageResponse>} A promise that resolves with the API response for the sent message.
     */
    sendMessage(data: ISendMessage): Promise<ISendMessageResponse>;
    /**
     * Sends messages in bulk using the Termii API.
     * @param {ISendBulkMessage} data - The bulk message data to be sent.
     * @returns {Promise<ISendBulkMessageResponse>} A promise that resolves with the API response for the sent bulk messages.
     */
    sendBulkMessage(data: ISendBulkMessage): Promise<ISendBulkMessageResponse>;
}