import IORedis from "ioredis";
/**
 * If only the ports are provided, we default host to 127.0.0.1,
 * and assume services are running inside docker-compose.
 */
export interface ClusterWithNATClientOptions {
    ports: number[];
}
/**
 * If hosts are provided, we are running inside redis-testbench' provided
 * redis cluster.
 * Ports default to 6379.
 */
export interface ClusterWithoutNATClientOptions {
    hosts: string[];
}
/**
 * Non-cluster redis client option.
 */
export interface RedisClientOptions {
    host?: string;
    port?: number;
}
export declare type ClientOptions = {
    /**
     * If truthy, commands will not get sent to replicas.
     */
    noReplicas?: boolean;
} & (RedisClientOptions | ClusterWithoutNATClientOptions | ClusterWithNATClientOptions);
/**
 * Returns `buildClient` options from environment variables:
 *
 * Accessing redis cluster from outside of docker-compose:
 * - REDIS_PORTS=6380,6381,6382,6383,6384,6385
 *
 * Accessing redis cluster from inside the docker-compose:
 * - REDIS_HOSTS=redis-node-0
 *
 * Accessing redis instance from outside of docker-compose:
 * - REDIS_PORT=6379
 *
 * Accessing redis instance from inside of docker-compose:
 * - REDIS_PORT=6379
 */
export declare const buildOptionsFromEnv: () => ClientOptions;
/**
 * Create either a redis or redis cluster client (from IORedis package).
 * If a redis cluster client is requested, IORedis natMap is resolved.
 *
 * Accessing redis cluster from outside of docker-compose:
 * - buildClient({ ports: [ 6380, 6381, 6382, 6383, 6384, 6385 ] })
 *
 * Accessing redis cluster from inside the docker-compose:
 * - buildClient({ hosts: [ 'redis-node-0' ] })
 *
 * Accessing redis instance from outside of docker-compose:
 * - buildClient({ port: 6379 })
 *
 * Accessing redis instance from inside of docker-compose:
 * - buildClient({ port: 6379 })
 */
export declare const buildClient: (options: ClientOptions) => Promise<IORedis.Redis | IORedis.Cluster>;