/// <amd-module name="@cdkx/aws-sns-subscriptions/handlers/slack-subscription-handler" />
import { SNSEvent } from 'aws-lambda';
import { BaseSNSHandler } from './base-sns-handler';
export interface ISlackSNSMessage {
    message: string;
    subject: string;
    unsubscribeUrl: string;
    timestamp: string;
    messageId: string;
    topicArn: string;
}
export declare class SlackSubscriptionHandler extends BaseSNSHandler {
    private ssmClient;
    constructor();
    runExec(event: SNSEvent): Promise<{
        success: boolean;
    } | undefined>;
}