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/** * Copyright (c) 2017 ~ present NAVER Corp. * billboard.js project is licensed under the MIT license */export default {	/**	 * Category Name	 * @param {number} i Index number	 * @returns {string} category Name	 * @private	 */	categoryName(i: number): string {		const {axis_x_categories: categories} = this.config;
		return i < categories?.length ? categories[i] : i;	},};