import type { RedisClientType, RedisClusterType, RedisSentinelType, createClient, createCluster, createSentinel } from 'redis';
import { HealthIndicatorResult } from './nestjs-terminus';
type Redis = ReturnType<typeof createClient> | ReturnType<typeof createCluster> | ReturnType<typeof createSentinel> | RedisClientType | RedisClusterType | RedisSentinelType;
export declare class RedisHealthIndicator {
    /**
     * TODO
     *
     * This is workaround, this should be DI but for some reason
     * HealthIndicatorService is not injected after building the package.
     *
     * Reference (how it should be): https://docs.nestjs.com/recipes/terminus#custom-health-indicator
     *
     * ToDo: Fix this issue in the future.
     */
    private healthIndicatorService;
    isHealthy(key: string, { client }: {
        client: Redis;
    }): Promise<HealthIndicatorResult>;
}
export {};
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