import { NodeFilterType, PossibleNodeConfigType, ShadowsocksNodeConfig, ShadowsocksrNodeConfig, SortedNodeFilterType, VmessNodeConfig } from '../types';
export * from './surge';
export * from './surfboard';
export * from './clash';
export * from './singbox';
export * from './quantumult';
export * from './loon';
export * from './remote-snippet';
export * from './subscription';
export * from './time';
export * from './errors';
export * from './env-flag';
export { default as httpClient } from './http-client';
export declare const getDownloadUrl: (baseUrl: string | undefined, artifactName: string, inline?: boolean, accessToken?: string) => string;
export declare const getUrl: (baseUrl: string, path: string, accessToken?: string) => string;
export declare const toUrlSafeBase64: (str: string) => string;
export declare const fromUrlSafeBase64: (str: string) => string;
export declare const toBase64: (str: string) => string;
export declare const fromBase64: (str: string) => string;
export declare const toMD5: (str: string) => string;
/**
 * @see https://github.com/shadowsocks/shadowsocks-org/wiki/SIP002-URI-Scheme
 */
export declare const getShadowsocksNodes: (list: ReadonlyArray<ShadowsocksNodeConfig>, groupName?: string) => string;
export declare const getShadowsocksrNodes: (list: ReadonlyArray<ShadowsocksrNodeConfig>, groupName: string) => string;
export declare const getV2rayNNodes: (list: ReadonlyArray<VmessNodeConfig>) => string;
export declare const getShadowsocksNodesJSON: (list: ReadonlyArray<ShadowsocksNodeConfig>) => string;
export declare const getNodeNames: (list: ReadonlyArray<PossibleNodeConfigType>, filter?: NodeFilterType | SortedNodeFilterType, separator?: string) => string;
export declare const changeCase: (str: string, format: "camelCase" | "snakeCase" | "kebabCase") => string;
export declare const pickAndFormatStringList: (obj: Record<string, any>, keyList: readonly string[], options?: {
    keyFormat?: "camelCase" | "snakeCase" | "kebabCase";
    stringifyValue?: boolean;
}) => readonly string[];
/**
 * Pick and format keys from an object
 * Input:
 * {
 *   foo: 'bar',
 *   bAr: 'bar',
 *   bAz: 'baz',
 * }
 *
 * pickAndFormatKeys(obj, ['foo', 'bar'], { keyFormat: 'kebabCase' })
 *
 * Output:
 * {
 *   'foo': 'bar',
 *   'b-ar': 'bar',
 *   'b-az': 'baz',
 * }
 */
export declare const pickAndFormatKeys: (obj: Record<string, any>, keyList: readonly string[], options?: {
    keyFormat?: "camelCase" | "snakeCase" | "kebabCase";
}) => Record<string, any>;
export declare const decodeStringList: <T = Record<string, string | boolean>>(stringList: ReadonlyArray<string>) => T;
export declare const ensureConfigFolder: (dir?: string) => string;
export declare const lowercaseHeaderKeys: (headers: Record<string, string>) => Record<string, string>;
export declare const isIp: (str: string) => boolean;
export declare const isNow: () => boolean;
export declare const isVercel: () => boolean;
export declare const isHeroku: () => boolean;
export declare const isGitHubActions: () => boolean;
export declare const isGitLabCI: () => boolean;
export declare const isRailway: () => boolean;
export declare const isNetlify: () => boolean;
export declare const isAWSLambda: () => boolean;
export declare const isAWS: () => boolean;
export declare const isFlyIO: () => boolean;
export declare const isGFWFree: () => boolean;
export declare const checkNotNullish: (val: unknown) => boolean;
export declare const getPortFromHost: (host: string) => number;
export declare const getHostnameFromHost: (host: string) => string;
/**
 * Returned value must be in Mbps
 *
 * Input value can be:
 * - 1.2 Mbps
 * - 1.2
 * - 1200
 * - 1200 Kbps
 * - 1.2 Gbps
 * Return value will be:
 * - 1.2
 * - 1.2
 * - 1.2
 * - 1.2
 * - 1200
 */
export declare const parseBitrate: (input: string | number) => number;
export declare const getHeader: (headers: Record<string, string> | undefined, key: string) => string | undefined;