import type { StorageClient } from '@crawlee/types';
import type { LoadSnapshot } from './load_signal';
import { SnapshotStore } from './load_signal';
export interface ClientSnapshot extends LoadSnapshot {
    rateLimitErrorCount: number;
}
export interface ClientLoadSignalOptions {
    client: StorageClient;
    clientSnapshotIntervalSecs?: number;
    maxClientErrors?: number;
    overloadedRatio?: number;
    snapshotHistoryMillis?: number;
}
/**
 * Periodically checks the storage client for rate-limit errors (HTTP 429)
 * and reports overload when the error delta exceeds a threshold.
 */
// @ts-ignore optional peer dependency or compatibility with es2022
export declare function createClientLoadSignal(options: ClientLoadSignalOptions): Omit<import("./load_signal").LoadSignal, "getSample"> & {
    store: SnapshotStore<ClientSnapshot>;
    handle: (cb: () => unknown) => void;
    getSample(sampleDurationMillis?: number): ClientSnapshot[];
};
/** @internal Return type for backward compat in Snapshotter facade */
export type ClientLoadSignal = ReturnType<typeof createClientLoadSignal>;