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/** * Copyright (c) 2017 ~ present NAVER Corp. * billboard.js project is licensed under the MIT license */export default {	/**	 * Set specified category name on category axis.	 * @function category	 * @instance	 * @memberof Chart	 * @param {number} i index of category to be changed	 * @param {string} category category value to be changed	 * @returns {string}	 * @example	 * chart.category(2, "Category 3");	 */	category(i: number, category: string): string {		const $$ = this.internal;		const {config} = $$;
		if (arguments.length > 1) {			config.axis_x_categories[i] = category;			$$.redraw();		}
		return config.axis_x_categories[i];	},
	/**	 * Set category names on category axis.	 * @function categories	 * @instance	 * @memberof Chart	 * @param {Array} categories This must be an array that includes category names in string. If category names are included in the date by data.x option, this is not required.	 * @returns {Array}	 * @example	 * chart.categories([	 *      "Category 1", "Category 2", ...	 * ]);	 */	categories(categories: string[]): string[] {		const $$ = this.internal;		const {config} = $$;
		if (!arguments.length) {			return config.axis_x_categories;		}
		config.axis_x_categories = categories;		$$.redraw();
		return config.axis_x_categories;	}};