import type { ChronicleServerAddress } from './ChronicleConnectionString.js';
import type { ILoadBalancerStrategy } from './ILoadBalancerStrategy.js';
/**
 * Selects the least-loaded candidate by probing each one's current connection count over
 * HTTP and picking the minimum, breaking ties randomly. This is the default strategy.
 *
 * Before every probe attempt (not just the first), waits a random jitter to avoid a
 * thundering herd of clients probing every candidate at the exact same instant. A single
 * candidate is returned immediately without probing, since there is nothing to choose
 * between.
 */
export declare class LeastConnectionsLoadBalancerStrategy implements ILoadBalancerStrategy {
    private readonly _skipTlsValidation;
    private readonly _maxJitterMs;
    private readonly _dispatcher;
    /**
     * Initializes a new instance of {@link LeastConnectionsLoadBalancerStrategy}.
     * @param skipTlsValidation - Whether to skip TLS certificate validation on the
     * `/connections/count` and `/connections/reserve` probe requests, matching the toggle
     * used for the gRPC channel itself.
     * @param maxJitterMs - The maximum jitter, in milliseconds, to wait before every probe
     * attempt. Defaults to 250ms. 0 disables jitter entirely.
     */
    constructor(_skipTlsValidation: boolean, _maxJitterMs?: number);
    select(candidates: ChronicleServerAddress[]): Promise<ChronicleServerAddress>;
    private jitter;
    private probeConnectionCount;
    private reserve;
}
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