 {
     static let ErrorDomain = "PHAssetHelperErrorDomain"
     
-    fileprivate let imageManager = PHImageManager.default()
-    fileprivate var activeImageRequests: [String: PHImageRequestID] = [:]
-    fileprivate var activeAssetRequests: [String: PHImageRequestID] = [:]
+    private let imageManager = PHImageManager.default()
+    private var activeImageRequests: [String: PHImageRequestID] = [:]
+    private var activeAssetRequests: [String: PHImageRequestID] = [:]
 
     deinit
     {

        }
    }
    
    fileprivate func cancelAssetRequest(cameraRollAsset: VIMPHAsset)
    {
        let phAsset = cameraRollAsset.phAsset
        


    // MARK: Private API

    private func cancelImageRequest(cameraRollAsset: VIMPHAsset)
    {
        let phAsset = cameraRollAsset.phAsset
        
