/**
 * @typedef {import('./resource.js').default} PodiumClientResource
 * @typedef {import('./resource.js').PodiumClientResourceOptions} PodiumClientResourceOptions
 * @typedef {import('./response.js').default} PodiumClientResponse
 * @typedef {import('./http-outgoing.js').PodiumRedirect} PodiumRedirect
 * @typedef {import('@podium/schemas').PodletManifestSchema} PodletManifest
 */
/**
 * @typedef {object} PodiumClientOptions
 * @property {string} name
 * @property {import('abslog').AbstractLoggerOptions} [logger]
 * @property {number} [retries=4]
 * @property {number} [timeout=1000] In milliseconds
 * @property {number} [maxAge=Infinity]
 * @property {boolean} [rejectUnauthorized=true]
 * @property {number} [resolveThreshold]
 * @property {number} [resolveMax]
 * @property {import('http').Agent} [httpAgent]
 * @property {import('https').Agent} [httpsAgent]
 */
/**
 * @typedef {object} RegisterOptions
 * @property {string} name A unique name for the podlet
 * @property {string} uri URL to the podlet's `manifest.json`
 * @property {number} [retries=4] Number of retries before serving fallback
 * @property {number} [timeout=1000] In milliseconds, the amount of time to wait before serving fallback.
 * @property {boolean} [throwable=false] Set to `true` and surround `fetch` in `try/catch` to serve different content in case podlet is unavailable. Will not server fallback content.
 * @property {boolean} [redirectable=false] Set to `true` to allow podlet to respond with a redirect. You need to look for the redirect response from the podlet and return a redirect response to the browser yourself.
 * @property {import('./resource.js').RequestFilterOptions} [excludeBy] Used by `fetch` to conditionally skip fetching the podlet content based on values on the request.
 * @property {import('./resource.js').RequestFilterOptions} [includeBy] Used by `fetch` to conditionally skip fetching the podlet content based on values on the request.
 */
export default class PodiumClient extends EventEmitter<[never]> {
    /**
     * @constructor
     * @param {PodiumClientOptions} options
     */
    constructor(options?: PodiumClientOptions);
    get registry(): any;
    get metrics(): Metrics;
    get state(): "instantiated" | "stable" | "initializing" | "unhealthy" | "unstable";
    /**
     * Register a podlet so you can fetch its contents later with {@link PodiumClientResource.fetch}.
     *
     * @param {RegisterOptions} options
     * @returns {PodiumClientResource}
     *
     * @example
     * ```js
     * const headerPodlet = layout.client.register({
     *   name: 'header',
     *   uri: 'http://header/manifest.json',
     * });
     * ```
     */
    register(options: RegisterOptions): PodiumClientResource;
    dump(): any;
    load(dump: any): any;
    /**
     * Refreshes the cached podlet manifest for all {@link register}ed podlets.
     */
    refreshManifests(): Promise<void>;
    #private;
}
export type PodiumClientResource = import("./resource.js").default;
export type PodiumClientResourceOptions = import("./resource.js").PodiumClientResourceOptions;
export type PodiumClientResponse = import("./response.js").default;
export type PodiumRedirect = import("./http-outgoing.js").PodiumRedirect;
export type PodletManifest = import("@podium/schemas").PodletManifestSchema;
export type PodiumClientOptions = {
    name: string;
    logger?: import("abslog").AbstractLoggerOptions;
    retries?: number;
    /**
     * In milliseconds
     */
    timeout?: number;
    maxAge?: number;
    rejectUnauthorized?: boolean;
    resolveThreshold?: number;
    resolveMax?: number;
    httpAgent?: import("http").Agent;
    httpsAgent?: import("https").Agent;
};
export type RegisterOptions = {
    /**
     * A unique name for the podlet
     */
    name: string;
    /**
     * URL to the podlet's `manifest.json`
     */
    uri: string;
    /**
     * Number of retries before serving fallback
     */
    retries?: number;
    /**
     * In milliseconds, the amount of time to wait before serving fallback.
     */
    timeout?: number;
    /**
     * Set to `true` and surround `fetch` in `try/catch` to serve different content in case podlet is unavailable. Will not server fallback content.
     */
    throwable?: boolean;
    /**
     * Set to `true` to allow podlet to respond with a redirect. You need to look for the redirect response from the podlet and return a redirect response to the browser yourself.
     */
    redirectable?: boolean;
    /**
     * Used by `fetch` to conditionally skip fetching the podlet content based on values on the request.
     */
    excludeBy?: import("./resource.js").RequestFilterOptions;
    /**
     * Used by `fetch` to conditionally skip fetching the podlet content based on values on the request.
     */
    includeBy?: import("./resource.js").RequestFilterOptions;
};
import EventEmitter from 'events';
import Metrics from '@metrics/client';