import * as React from 'react';
export interface IndexedResizeCallbackElement {
    handleResize: () => void;
}
export declare function useMeasureList<TElement extends HTMLElement & IndexedResizeCallbackElement = HTMLElement & IndexedResizeCallbackElement>(measureParams: {
    currentIndex: number;
    totalLength: number;
    virtualizerLength: number;
    defaultItemSize: number;
    sizeTrackingArray: React.MutableRefObject<number[]>;
    axis: 'horizontal' | 'vertical';
    requestScrollBy?: (sizeChange: number) => void;
    /**
     * Callback invoked when an item's size is measured or changes.
     * @param index - The index of the measured item
     * @param size - The new measured size
     * @param delta - The size difference from previous measurement
     */
    onItemMeasured?: (index: number, size: number, delta: number) => void;
}): {
    createIndexedRef: (index: number) => (el: TElement) => void;
    refObject: React.MutableRefObject<{
        [key: string]: TElement | null;
    }>;
};
/**
 * FIXME - TS 3.8/3.9 don't have ResizeObserver types by default, move this to a shared utility once we bump the minbar
 * A utility method that creates a ResizeObserver from a target document
 * @param targetDocument - document to use to create the ResizeObserver
 * @param callback  - https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserver/ResizeObserver#callback
 * @returns a ResizeObserver instance or null if the global does not exist on the document
 */
export declare function createResizeObserverFromDocument(targetDocument: Document | null | undefined, callback: ResizeObserverCallback): ResizeObserver | null;