 	public func scrollViewDidScrollToTop(_ scrollView: UIScrollView) {
 		delegate?.scrollViewDidScrollToTop?(scrollView)
 	}
-
+	
 	
 	
 	//MARK: - Private

				}
			}
		}

	}
	
	private weak var _treeController: TreeController?

		switch type {
		case .insert:
			update?.insertSection[sectionIndex] = sectionNode.init(section: sectionInfo, objectNode: self.objectNode)
		//			children.insert(sectionNode.init(section: sectionInfo, objectNode: self.objectNode), at: sectionIndex)
		case .delete:
			update?.deleteSection.insert(sectionIndex)
		//			children.remove(at: sectionIndex)
		default:
			break
		}
