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/** * Copyright (c) 2021 ~ present NAVER Corp. * billboard.js project is licensed under the MIT license *//** * Sparkline plugin option class * @class SparklineOptions * @param {Options} options Sparkline plugin options * @augments Plugin * @returns {TableviewOptions} * @private */export default class Options {	constructor() {		return {			/**			 * Specify sparkline charts holder selector.			 * - **NOTE:** The amount of holder should match with the amount of data. If has less, will append necessaray amount nodes as sibling of main chart.			 * @name selector			 * @memberof plugin-sparkline			 * @type {string}			 * @default undefined			 * @example			 *   selector: ".sparkline"			 */			selector: undefined		};	}}