import { EmphasisContext } from '../types';
import { Ref } from 'vue';
export declare const ECHARTS_EMPHASIS_KEY: unique symbol;
interface UseEmphasisOption<T> {
    options: Ref<T>;
    update: (data: T) => void;
}
export declare const useEmphasis: <T>(config?: UseEmphasisOption<T>) => EmphasisContext;
export {};