import { PublishCommandOutput } from '@aws-sdk/client-sns';
/**
 * Represents the configuration options for a publisher.
 * @typedef {Object} PublisherConfig
 * @property {string} [region] - The region where the publisher is located.
 */
export type PublisherConfig = {
    region?: string;
};
/**
 * Represents a publisher that can publish messages to an SNS topic.
 */
export default class Publisher {
    /**
     * The region of the object or entity.
     * @private
     * @type {string}
     */
    private region;
    /**
     * Constructs a new instance of the Publisher class.
     * @param {PublisherConfig} [config] - The configuration object for the Publisher.
     * @returns None
     */
    constructor(config?: PublisherConfig);
    /**
     * Publishes a message on a specified topic.
     * @param {any} messageObject - The message object to be published.
     * @param {string} topic - The ARN of the topic to publish the message to.
     * @param {object} [additionalProps] - Additional properties to include in the publish command.
     * @returns {Promise<PublishCommandOutput>} - A promise that resolves to the response from the publish command.
     */
    publishOnTopic(messageObject: any, topic: string, additionalProps?: object): Promise<PublishCommandOutput | undefined>;
    /**
     * Publishes a message on a specified topic.
     * @param {string} message - The SMS message to publish.
     * @param {string} phone - The phone number to publish the message to.
     * @returns {Promise<PublishCommandOutput>} - A promise that resolves to the response from the publish command.
     */
    publishSMS(message: string, phone: string): Promise<PublishCommandOutput | undefined>;
    /**
     * Establishes a connection to the SNS client if it does not already exist or if the region has changed.
     * @returns None
     */
    private connect;
}