diff --git a/TIUIElements/Sources/Helpers/Protocols/NavigationBarСalculated.swift b/TIUIElements/Sources/Helpers/Protocols/CollapsibleViewsContainer.swift
similarity index 85%
rename from TIUIElements/Sources/Helpers/Protocols/NavigationBarСalculated.swift
rename to TIUIElements/Sources/Helpers/Protocols/CollapsibleViewsContainer.swift
index 139dacbf..210b80af 100644
--- a/TIUIElements/Sources/Helpers/Protocols/NavigationBarСalculated.swift
+++ b/TIUIElements/Sources/Helpers/Protocols/CollapsibleViewsContainer.swift
@@ -1,30 +1,30 @@
 import UIKit
 
 public protocol CollapsibleViewsContainer: class,
-                                           TableViewHandler,
-                                           NavigationBarHandler {
-    
+                                    TableViewHandler,
+                                    NavigationBarHandler  {
     var topHeaderView: UIView? { get } // titleView
     var bottomHeaderView: UIView? { get } // tableHeaderView
+
     var fixedTopOffet: CGFloat { get } // status bar + nav bar height
 }
 
 public extension UIViewController {
-    
+
     var defaultTopOffet: CGFloat { // status bar + nav bar height calculate for UIViewController
         let navigationBar = navigationController?.navigationBar
         let window = view.window
         let prefersLargeTitles = navigationBar?.prefersLargeTitles ?? false
-        
+
         let statusBarHeight: CGFloat
         if #available(iOS 13.0, *) {
             statusBarHeight = window?.windowScene?.statusBarManager?.statusBarFrame.height ?? 0
         } else {
             statusBarHeight =  UIApplication.shared.statusBarFrame.height
         }
-        
+
         let navigationBarHeight = navigationBar?.bounds.height ?? 0
-        
+
         return prefersLargeTitles
             ? navigationBarHeight - statusBarHeight
             : 0
diff --git a/TIUIElements/Sources/Helpers/Protocols/TableViewHandler.swift b/TIUIElements/Sources/Helpers/Protocols/TableViewHandler.swift
index 23bf9618..0d9466f1 100644
--- a/TIUIElements/Sources/Helpers/Protocols/TableViewHandler.swift
+++ b/TIUIElements/Sources/Helpers/Protocols/TableViewHandler.swift
@@ -4,7 +4,7 @@ public protocol TableViewHandler {
     var tableView: UITableView { get }
 }
 
-extension TableViewHandler {
+public extension TableViewHandler {
     var startOffset: CGPoint {
         tableView.contentOffset
     }
diff --git a/TIUIElements/Sources/Helpers/Protocols/UIView+Animate.swift b/TIUIElements/Sources/Helpers/Protocols/UIView+Animate.swift
index be730851..d34a20a4 100644
--- a/TIUIElements/Sources/Helpers/Protocols/UIView+Animate.swift
+++ b/TIUIElements/Sources/Helpers/Protocols/UIView+Animate.swift
@@ -7,7 +7,7 @@ extension UIView {
             self?.transform = CGAffineTransform(translationX: 0, y: -alpha*10)
         }
     }
-    
+
     public func scale(alpha: CGFloat) {
         UIView.animate(withDuration: 0.2){ [weak self] in
             self?.alpha = alpha