import { Client as ElasticClient } from '@elastic/elasticsearch';
export interface IElasticKVStoreConstructorOptions {
    index: string;
    node: string;
    auth?: {
        username: string;
        password: string;
    };
}
export declare class ElasticKVStore {
    client: ElasticClient;
    index: string;
    private readyDeferred;
    constructor(options: IElasticKVStoreConstructorOptions);
    private setupIndex;
    set(key: string, value: string): Promise<void>;
    get(key: string): Promise<string | null>;
    delete(key: string): Promise<void>;
    clear(): Promise<void>;
}