/// <reference types="node" />
import { Entry } from './types';
export declare type Options = {
    bufferToString: boolean;
    indexHashes: boolean;
};
export declare class Libretrodb<T extends Buffer | string> {
    private path;
    private metadataOffset;
    private firstIndexOffset;
    private count;
    private file;
    private entries;
    private index;
    private options;
    static from<Ops extends Partial<Options>>(path: string, options?: Ops): Promise<Libretrodb<Ops extends {
        bufferToString: false;
    } ? Buffer : string>>;
    constructor(path: string, options?: Partial<Options>);
    load(): Promise<void>;
    getEntries(): Entry<T>[];
    searchHash(hex: string): Entry<T> | undefined;
    private readMagicNumber;
    private readMetadataOffset;
    private readMetadata;
    private readEntries;
    private addToIndex;
    private rmsgpackRead;
    private readMap;
    private readArray;
    /**
     * Some rdb files are missing the metadata_offset, so
     * we duck search the position of the map+count+len from the end
     * of the file.
     * https://github.com/libretro/libretro-database/issues/1163
     */
    private searchForMetadataOffset;
}