Source: components/filter/filter-tree/filter-option/filter-option-sub-category.js

import FilterOption from './filter-option';

/**
 * Filter option with displayType = 'sub_category'.
 * This display type is used when user make a filter by collection,
 * and chose to display tags as subcateory.
 * 'sub_category' is deprecated. Use 'multi_level_collections' instead.
 */
class FilterOptionSubCategory extends FilterOption {
	/**
	 * Get the content html template for DisplayType.SUB_CATEGORY
	 * @returns {string} Raw html template
	 */
	getBlockContentTemplate() {
		return `
			<ul class="{{class.filterOptionItemList}} {{class.filterOptionItemListSingleList}}">
				{{filterItems}}
			</ul>
		`;
	}
}

export default FilterOptionSubCategory;