import { RefObject } from 'react';
export declare function useStyleObserver<T extends string>(ref: RefObject<HTMLElement>, properties: T[], onStyleChange: (values: Record<T, string>) => void, options?: {
    /**
     * Whether to call `onStyleChange` after the first render, with the initial property values.
     * @default false
     */
    initial?: boolean;
}): void;
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