     }
 }
 
-// MARK: _AssetCollectionViewController
+// MARK: _AssetsCollectionCell.
 
 extension _AssetsViewController {
     class _AssetsCollectionCell: UICollectionViewCell {

        setTabNavigationTitle(["title": _photoAssetCollection.localizedTitle ?? "", "range": 0..<2])
        // Register asset collection cell.
        collectionView!.register(_AssetsCollectionCell.self, forCellWithReuseIdentifier: String(describing: _AssetsCollectionCell.self))
        
        collectionView!.contentInset = UIEdgeInsets(top: tabNavigationController!.tabNavigationBar.bounds.height, left: 0.0, bottom: 0.0, right: 0.0)
        collectionView!.scrollIndicatorInsets = collectionView!.contentInset


import UIKit
import Photos
import AVFoundation

// MARK: - TabNavigationImagePickerController.

extension TabNavigationImagePickerController {
    public typealias ImagesResultHandler = (([UIImage]) -> Void)
