/**
 * @typedef {Object.<string, number>} AutomatedReadabilityCounts
 * @property {number} sentence
 * @property {number} word
 * @property {number} character
 */
/**
 * Given an object containing the number of words (`word`), the number of sentences (`sentence`), and the number of characters  (`character`) in a document, returns the grade level associated with the document.
 *
 * @param {AutomatedReadabilityCounts} counts
 * @return {number}
 */
export function automatedReadability(counts: AutomatedReadabilityCounts): number
export type AutomatedReadabilityCounts = {
  [x: string]: number
}