import * as cloudwatchActions from "aws-cdk-lib/aws-cloudwatch-actions";
import * as lambda from "aws-cdk-lib/aws-lambda";
import type * as secretsmanager from "aws-cdk-lib/aws-secretsmanager";
import * as sns from "aws-cdk-lib/aws-sns";
import * as constructs from "constructs";
export interface SlackAlarmProps {
    projectName: string;
    envName: string;
    /**
     * A plaintext secret containing the URL of a Slack incoming webhook.
     * The webhook should be created through a Slack app, and only allows posting to one specific Slack channel.
     * See Slack's official documentation (e.g., https://api.slack.com/messaging/webhooks) for more details.
     *
     * NOTE: Incoming webhooks created through legacy custom integrations in Slack are not supported.
     */
    slackWebhookUrlSecret: secretsmanager.ISecret;
}
/**
 * Creates
 * - SNS Topic that can be used to action alarms, with a Lambda
 * that will send a message to Slack for the alarm.
 * - A reusable Lambda that accepts CloudWatch Logs subscription events and posts
 * formatted error messages to Slack.
 */
export declare class SlackAlarm extends constructs.Construct {
    readonly alarmTopic: sns.Topic;
    readonly snsAction: cloudwatchActions.SnsAction;
    readonly logHandler: lambda.Function;
    constructor(scope: constructs.Construct, id: string, props: SlackAlarmProps);
}