import { Logger } from 'ts-log';
import { Programs, ProviderServerArgs, ServiceNames } from './programs/types';
import dns, { SrvRecord } from 'dns';
import { FailedAttemptError } from 'p-retry';
export declare const SERVICE_DISCOVERY_BACKOFF_FACTOR_DEFAULT = 1.1;
export declare const SERVICE_DISCOVERY_TIMEOUT_DEFAULT: number;
export declare const cardanoNodeDependantServices: Set<ServiceNames>;
export declare type RetryBackoffConfig = {
    factor?: number;
    maxRetryTime?: number;
};
export declare const onFailedAttemptFor: <ServiceNames_1>(serviceName: ServiceNames_1, logger: Logger) => ({ attemptNumber, message, retriesLeft }: FailedAttemptError) => Promise<void>;
export declare const resolveSrvRecord: (serviceName: string) => Promise<SrvRecord>;
export declare const createDnsResolver: (config: RetryBackoffConfig, logger: Logger) => (serviceName: string) => Promise<dns.SrvRecord>;
export declare type DnsResolver = ReturnType<typeof createDnsResolver>;
export declare const serviceSetHas: <ServiceNames_1>(serviceNames: ServiceNames_1[], services: Set<ServiceNames_1>) => boolean;
export declare const stringOptionToBoolean: (value: string, program: Programs, option: string) => boolean;
export declare const getDbPools: (dnsResolver: DnsResolver, logger: Logger, args: ProviderServerArgs) => Promise<{
    healthCheck?: undefined;
    main?: undefined;
} | {
    healthCheck: import("pg").Pool | undefined;
    main: import("pg").Pool | undefined;
}>;
export declare const getCardanoNode: (dnsResolver: DnsResolver, logger: Logger, args: ProviderServerArgs) => Promise<import("@cardano-sdk/ogmios").OgmiosCardanoNode | undefined>;
export declare const getGenesisData: (args: ProviderServerArgs) => Promise<import("..").GenesisData | undefined>;
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