import { ChainConfig, ChainForkConfig } from "@lodestar/config";
import { BeaconStateAllForks } from "@lodestar/state-transition";
import { Checkpoint } from "@lodestar/types/phase0";
import { Logger } from "@lodestar/utils";
export type NetworkName = "mainnet" | "dev" | "gnosis" | "sepolia" | "hoodi" | "chiado" | "ephemery";
export declare const networkNames: NetworkName[];
export declare function isKnownNetworkName(network: string): network is NetworkName;
export type WeakSubjectivityFetchOptions = {
    weakSubjectivityServerUrl: string;
    weakSubjectivityCheckpoint?: string;
};
export declare function getNetworkData(network: NetworkName): {
    chainConfig: ChainConfig;
    genesisFileUrl: string | null;
    genesisStateRoot: string | null;
    bootnodesFileUrl: string | null;
    bootEnrs: string[];
};
export declare function getNetworkBeaconParams(network: NetworkName): ChainConfig;
/**
 * Get genesisStateFile URL to download. Returns null if not available
 */
export declare function getGenesisFileUrl(network: NetworkName): string | null;
/**
 * Get expected genesisStateRoot for validation. Returns null if not available.
 * For example, this returns null for Ephemery, since its genesis state root
 * changes with each iteration and we don't know the permanent state root.
 */
export declare function getGenesisStateRoot(network: NetworkName | undefined): string | null;
/**
 * Fetches the latest list of bootnodes for a network
 * Bootnodes file is expected to contain bootnode ENR's concatenated by newlines
 */
export declare function fetchBootnodes(network: NetworkName): Promise<string[]>;
export declare function getNetworkBootnodes(network: NetworkName): Promise<string[]>;
/**
 * Reads and parses a list of bootnodes for a network from a file.
 */
export declare function readBootnodes(bootnodesFilePath: string): string[];
/**
 * Fetch weak subjectivity state from a remote beacon node
 */
export declare function fetchWeakSubjectivityState(config: ChainForkConfig, logger: Logger, { checkpointSyncUrl, wssCheckpoint }: {
    checkpointSyncUrl: string;
    wssCheckpoint?: string;
}, { lastDbState, lastDbValidatorsBytes }: {
    lastDbState: BeaconStateAllForks | null;
    lastDbValidatorsBytes: Uint8Array | null;
}): Promise<{
    wsState: BeaconStateAllForks;
    wsStateBytes: Uint8Array;
    wsCheckpoint: Checkpoint;
}>;
export declare function getCheckpointFromArg(checkpointStr: string): Checkpoint;
export declare function getCheckpointFromState(state: BeaconStateAllForks): Checkpoint;
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