import type { AdapterInterface } from "./adapters/types";
import type { Options } from "./types";
export declare const FLUSH_RATE_LIMIT_MS: number;
export declare function getQueuedValue(key: string): string | null | undefined;
export declare function resetQueue(): void;
export declare function enqueueQueryStringUpdate<Value>(key: string, value: Value | null, serialize: (value: Value) => string, options: Pick<Options, "history" | "scroll" | "shallow" | "throttleMs">): string | null;
/**
 * Eventually flush the update queue to the URL query string.
 *
 * This takes care of throttling to avoid hitting browsers limits
 * on calls to the history pushState/replaceState APIs, and defers
 * the call so that individual query state updates can be batched
 * when running in the same event loop tick.
 *
 * @returns a Promise to the URLSearchParams that have been applied.
 */
export declare function scheduleFlushToURL({ getSearchParamsSnapshot, updateUrl, rateLimitFactor, }: Pick<AdapterInterface, "updateUrl" | "getSearchParamsSnapshot" | "rateLimitFactor">): Promise<URLSearchParams>;
export declare function compose(final: () => void): void;