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/** * Copyright (c) 2017 ~ present NAVER Corp. * billboard.js project is licensed under the MIT license *//** * TextOverlap plugin option class * @class TextOverlapOptions * @param {Options} options TextOverlap plugin options * @augments Plugin * @returns {TextOverlapOptions} * @private */export default class Options {	constructor() {		return {			/**			 * Selector string for target text nodes within chart element.			 * - **NOTE:** If no value is given, defaults to data label text elements.			 * @name selector			 * @memberof plugin-textoverlap			 * @type {string}			 * @default undefined			 * @example			 *  // selector for data label text nodes			 * selector: ".bb-texts text"			 */			selector: undefined,
			/**			 * Extent of label overlap prevention.			 * @name extent			 * @memberof plugin-textoverlap			 * @type {number}			 * @default 1			 * @example			 * 	extent: 1			 */			extent: 1,
			/**			 * Minimum area needed to show a data label.			 * @name area			 * @memberof plugin-textoverlap			 * @type {number}			 * @default 0			 * @example			 * 	area: 0			 */			area: 0		};	}}