import type { NetworkId } from '../index.js';
import type { NodeId } from '@chainsafe/enr';
import type { AbstractBatchOperation, AbstractLevel } from 'abstract-level';
import type { Debugger } from 'debug';
export declare class DBManager {
    nodeId: string;
    db: AbstractLevel<string, string>;
    logger: Debugger;
    currentSize: () => Promise<number>;
    sublevels: Map<NetworkId, AbstractLevel<string, string>>;
    constructor(nodeId: NodeId, logger: Debugger, currentSize: () => Promise<number>, sublevels?: NetworkId[], db?: AbstractLevel<string>);
    get(network: NetworkId, key: string): Promise<string>;
    put(network: NetworkId, key: string, val: string): void;
    storeBlockIndex(blockIndex: Map<string, string>): Promise<void>;
    getBlockIndex(): Promise<Map<string, string>>;
    batch(ops: AbstractBatchOperation<string, string, string>[], sublevel?: NetworkId): any;
    del(network: NetworkId, key: string): Promise<void>;
    databaseKey(key: string): string;
    sublevel(network: NetworkId): AbstractLevel<string, string, string>;
    prune(sublevel: NetworkId, radius: bigint): Promise<void>;
    open(): Promise<void>;
    close(): Promise<void>;
    closeAll(): Promise<void>;
}
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