import * as sns from '@aws-cdk/aws-sns';
import { IQueue } from '@aws-cdk/aws-sqs';
/**
 * Options to subscribing to an SNS topic
 */
export interface SubscriptionProps {
    /**
     * The filter policy.
     *
     * @default - all messages are delivered
     */
    readonly filterPolicy?: {
        [attribute: string]: sns.SubscriptionFilter;
    };
    /**
     * Queue to be used as dead letter queue.
     * If not passed no dead letter queue is enabled.
     *
     * @default - No dead letter queue enabled.
     */
    readonly deadLetterQueue?: IQueue;
}