import * as plugins from '../plugins.js';
export type TWebPushEndpointPolicyErrorCode = 'ENDPOINT_URL_INVALID' | 'ENDPOINT_SCHEME_INVALID' | 'ENDPOINT_PORT_INVALID' | 'ENDPOINT_AUTHORITY_INVALID' | 'ENDPOINT_FRAGMENT_INVALID' | 'ENDPOINT_IP_LITERAL_FORBIDDEN' | 'ENDPOINT_DNS_EMPTY' | 'ENDPOINT_DNS_UNSAFE';
export declare class WebPushEndpointPolicyError extends Error {
    readonly code: TWebPushEndpointPolicyErrorCode;
    constructor(code: TWebPushEndpointPolicyErrorCode);
}
export interface IWebPushDnsAddress {
    address: string;
    family: number;
}
export type TWebPushDnsLookup = (hostnameArg: string) => Promise<IWebPushDnsAddress[]>;
export interface IWebPushResolvedEndpoint {
    url: URL;
    hostname: string;
    address: string;
    family: 4 | 6;
}
export declare function isGloballyRoutableWebPushAddress(addressArg: string): boolean;
export declare function parseWebPushEndpoint(endpointArg: string): URL;
export declare function resolveWebPushEndpoint(endpointArg: string, lookupArg?: TWebPushDnsLookup): Promise<IWebPushResolvedEndpoint>;
export declare function createPinnedWebPushAgent(resolvedArg: IWebPushResolvedEndpoint): InstanceType<typeof plugins.https.Agent>;