export declare class InvalidProxyConfig extends Error {
    constructor(message: string);
}
export interface RequestsProxyConfigDict {
    http: string;
    https: string;
}
export interface ProxyConfig {
    toRequestsDict(): RequestsProxyConfigDict;
    readonly preventKeepingConnectionsAlive: boolean;
    readonly retriesWhenBlocked: number;
}
export declare class GenericProxyConfig implements ProxyConfig {
    protected readonly _httpUrl?: string;
    protected readonly _httpsUrl?: string;
    constructor(httpUrl?: string, httpsUrl?: string);
    get httpUrl(): string | undefined;
    get httpsUrl(): string | undefined;
    toRequestsDict(): RequestsProxyConfigDict;
    get preventKeepingConnectionsAlive(): boolean;
    get retriesWhenBlocked(): number;
}
export interface WebshareProxyConfigOptions {
    proxyUsername: string;
    proxyPassword: string;
    filterIpLocations?: string[];
    retriesWhenBlocked?: number;
    domainName?: string;
    proxyPort?: number;
}
export declare class WebshareProxyConfig extends GenericProxyConfig {
    static readonly DEFAULT_DOMAIN_NAME = "p.webshare.io";
    static readonly DEFAULT_PORT = 80;
    readonly proxyUsername: string;
    readonly proxyPassword: string;
    readonly domainName: string;
    readonly proxyPort: number;
    private readonly filterIpLocations;
    private readonly retryCount;
    constructor(options: WebshareProxyConfigOptions);
    get url(): string;
    get httpUrl(): string;
    get httpsUrl(): string;
    get preventKeepingConnectionsAlive(): boolean;
    get retriesWhenBlocked(): number;
}