import { Reader } from 'mmdb-lib';
import { CityResponse } from 'maxmind';
import { Response } from 'mmdb-lib/lib/reader/response';
import { IMaxMindOptions, TEdition } from './interfaces';
export declare const MILLIS_IN_HOUR = 3600000;
export declare const MAX_ITEMS_IN_CACHE_DEFAULT = 6000;
export declare const rootDir: string;
export declare const DB_DIR_DEFAULT = "./maxmind-db";
export declare const getDbDir: (dbDir?: string) => string;
export declare const getDbName: (edition?: TEdition) => string;
export declare const getDbPath: (options: IMaxMindOptions) => string;
export declare const getPermanentLink: (options: IMaxMindOptions, isSha?: boolean) => string;
/**
 * Возвращает метку времени в часах
 */
export declare const getDbRevision: (reader: Reader<any> | undefined) => number;
export declare const revisionDate: (revision: number) => string;
export declare const revisionString: (revision: number) => string;
/**
 * Возвращает метку времени в часах
 */
export declare const getLastDbRevision: (options: IMaxMindOptions) => Promise<number>;
export declare const getReader: <T extends Response = CityResponse>(options: IMaxMindOptions) => Promise<Reader<T>>;
export declare const downloadCityDb: (options: IMaxMindOptions) => Promise<true | undefined>;
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