import type { PluginEvent } from 'roosterjs-editor-types';
/**
 * Gets the cached event data by cache key from event object if there is already one.
 * Otherwise, call getter function to create one, and cache it.
 * @param event The event object
 * @param key Cache key string, need to be unique
 * @param getter Getter function to get the object when it is not in cache yet
 */
export default function cacheGetEventData<T>(event: PluginEvent | null, key: string, getter: () => T): T;