export default { _loadedStyleNames: new Set(), getLoadedStyleNames() { return this._loadedStyleNames; }, isStyleNameLoaded(name) { return this._loadedStyleNames.has(name); }, setLoadedStyleName(name) { this._loadedStyleNames.add(name); }, deleteLoadedStyleName(name) { this._loadedStyleNames.delete(name); }, clearLoadedStyleNames() { this._loadedStyleNames.clear(); } };