/**
 * Shared read/write batch for overflow measurements. Many instances mount in
 * one commit (a virtualized row chunk × several overflow cells); measuring in
 * each layout effect reflows per instance, since its setState flushes before
 * the next reads `offsetWidth`. One pre-paint microtask runs all reads against
 * clean layout, then all writes — React batches them, no interleaving.
 */
/** Write phase of a batched measurement: state + style writes, no DOM reads. */
export interface WritePhase {
    (): void;
}
/** Read phase: DOM reads only; returns the write to run after all reads. */
export interface ReadPhase {
    (): WritePhase;
}
/**
 * Queue a measurement for the next pre-paint flush. Returns a cancel
 * function — call it on effect cleanup so unmounted or re-rendered
 * instances never measure stale refs.
 */
export declare const scheduleOverflowMeasurement: (read: ReadPhase) => (() => void);