import { ErrorUnion, SecondsUnion } from '../outputs';
/**
 * Computes time needed to receive a response from a Telegram server through a proxy.
 * Can be called before authorization
 * @param {Object} params
 * @param {number} [params.proxyId] - Proxy identifier. Use 0 to ping a Telegram
 * server without a proxy
 * @param {Object} state
 * @returns {SecondsUnion | ErrorUnion}
 */
export declare type PingProxyMethod = <ResponseT = SecondsUnion>(params: PingProxyParams, state?: Record<string, any>) => Promise<ResponseT | ErrorUnion>;
export interface PingProxyParams {
    /** Proxy identifier. Use 0 to ping a Telegram server without a proxy */
    proxyId?: number;
}