import type { QueryClient, QueryKey } from '@tanstack/react-query';
export interface CoalescedRefetchScheduler {
    schedule: () => void;
    flush: () => Promise<void>;
    cancel: () => void;
}
/**
 * Debounces catalog refetches and skips overlapping in-flight runs.
 * Burst realtime events collapse to one HTTP fetch.
 */
export declare function createCoalescedRefetchScheduler(getQueryClient: () => QueryClient, getCacheKey: () => QueryKey, debounceMs?: number): CoalescedRefetchScheduler;
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