export = setup;
export = setup;
/**
 * This is the common logic for both the Node.js and web browser
 * implementations of `debug()`.
 */
declare function setup(env: any): {
    (namespace: string): Function;
    debug: any;
    default: any;
    coerce: (val: Mixed) => Mixed;
    disable: () => string;
    enable: (namespaces: string) => void;
    enabled: (name: string) => boolean;
    humanize: any;
    /**
    * Active `debug` instances.
    */
    instances: any[];
    /**
    * The currently active debug mode names, and names to skip.
    */
    names: any[];
    skips: any[];
    /**
    * Map of special "%n" handling functions, for the debug "format" argument.
    *
    * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
    */
    formatters: {};
    selectColor: (namespace: string) => number | string;
};
declare namespace setup {
    export { settings, load, parseMessage, C, isSocket, str_utf8_length, isFunction, isString, isDecimal, isEmpty, hasMethods, createRandomToken, newTag, newUUID, hostType, escapeUser, normalizeTarget, headerize, sipErrorCause, getRandomTestNetIP, calculateMD5, closeMediaStream, cloneArray, cloneObject, log, formatArgs, save, useColors, storage, colors, writer as write, unknown as parse, unknown as parseParams, parseFmtpConfig, unknown as parsePayloads, unknown as parseRemoteCandidates, unknown as parseImageAttributes, unknown as parseSimulcastStreamList };
}
declare namespace settings {
    const authorization_user: null;
    const password: null;
    const realm: null;
    const ha1: null;
    const authorization_jwt: null;
    const display_name: null;
    const uri: null;
    const contact_uri: null;
    const instance_id: null;
    const use_preloaded_route: boolean;
    const session_timers: boolean;
    const session_timers_refresh_method: any;
    const session_timers_force_refresher: boolean;
    const no_answer_timeout: number;
    const register: boolean;
    const register_expires: number;
    const registrar_server: null;
    const sockets: null;
    const connection_recovery_max_interval: any;
    const connection_recovery_min_interval: any;
    const via_host: string;
}
/**
 * Load `namespaces`.
 *
 * @return {String} returns the previously persisted debug modes
 * @api private
 */
declare function load(): string;
declare function parseMessage(data: any, ua: any): any;
declare namespace C {
    const MIN_DURATION: number;
    const MAX_DURATION: number;
    const DEFAULT_DURATION: number;
    const MIN_INTER_TONE_GAP: number;
    const DEFAULT_INTER_TONE_GAP: number;
}
declare function isSocket(socket: any): boolean;
declare function str_utf8_length(string: any): number;
declare function isFunction(fn: any): boolean;
declare function isString(str: any): boolean;
declare function isDecimal(num: any): boolean;
declare function isEmpty(value: any): boolean;
declare function hasMethods(obj: any, ...args: any[]): boolean;
declare function createRandomToken(size: any, ...args: any[]): string;
declare function newTag(): string;
declare function newUUID(): string;
declare function hostType(host: any): any;
declare function escapeUser(user: any): string;
declare function normalizeTarget(target: any, domain: any): any;
declare function headerize(string: any): string;
declare function sipErrorCause(status_code: any): any;
declare function getRandomTestNetIP(): string;
declare function calculateMD5(string: any): string;
declare function closeMediaStream(stream: any): void;
declare function cloneArray(array: any): any;
declare function cloneObject(obj: any, ...args: any[]): any;
/**
 * Invokes `console.log()` when available.
 * No-op when `console.log` is not a "function".
 *
 * @api public
 */
declare function log(...args: any[]): false | void;
/**
 * Colorize log arguments if enabled.
 *
 * @api public
 */
declare function formatArgs(args: any): void;
/**
 * Save `namespaces`.
 *
 * @param {String} namespaces
 * @api private
 */
declare function save(namespaces: string): void;
/**
 * Currently only WebKit-based Web Inspectors, Firefox >= v31,
 * and the Firebug extension (any Firefox version) are known
 * to support "%c" CSS customizations.
 *
 * TODO: add a `localStorage` variable to explicitly enable/disable colors
 */
declare function useColors(): any;
declare const storage: LocalStorage;
declare const colors: string[];