import DynamoDB = require("aws-sdk/clients/dynamodb");
import { DynamoItem } from "dynamo-item";
import { Topic } from "@ournet/news-domain";
import { Locale } from "../common";
export declare type TopicEventKey = {
    topicId: string;
    createdAt: string;
};
export interface TopicEvent {
    topicId: string;
    eventId: string;
    createdAt: string;
    expiresAt: number;
    locale: string;
}
export declare class TopicEventHelper {
    static create(locale: Locale, eventId: string, createdAt: string, topics: Topic[]): TopicEvent[];
}
export declare class TopicEventModel extends DynamoItem<TopicEventKey, TopicEvent> {
    localeLastTopicsIndexName(): string;
    topicLastEventsIndexName(): string;
    constructor(client: DynamoDB.DocumentClient, tableSuffix: string);
}