import * as React from 'react';
export type ResizerProps = {
    /**
     * Ref of the element that is being resized.
     */
    elementRef: React.RefObject<HTMLElement | null>;
    /**
     * Ref of the container element in order to avoid resizing past container boundaries.
     * If not passed, viewport will be used.
     */
    containerRef?: React.RefObject<HTMLElement | null>;
    /**
     * Callback that is being called on resize start.
     * Useful to set state, style, or other properties when resizing is started.
     */
    onResizeStart?: () => void;
    /**
     * Callback that is being called on resize end.
     * Useful to preserve state if element is being closed.
     */
    onResizeEnd?: (style: React.CSSProperties) => void;
};
/**
 * Component that allows to resize parent element.
 * Parent must have `position: relative`.
 *
 * Ideally should be used within a shadow root.
 * @private
 * @example
 * const ref = React.useRef<HTMLDivElement>(null);
 * return (
 *   <div ref={ref} style={{ position: 'relative' }}>
 *     <Resizer elementRef={ref} />
 *   </div>
 * );
 */
export declare const Resizer: (props: ResizerProps) => React.JSX.Element;