     return context
   }
   
-//  /// **Mechanica**
-//  ///
-//  /// Asynchronously attempts to commit unsaved changes or rollbacks if any error occurs.
-//  /// - Parameters:
-//  ///   - isRollBackEnabled: Enables rollback if any error occurs (default true).
-//  public func performSave(orRollBack isRollBackEnabled: Bool = true) {
-//    perform {
-//      [unowned self] in
-//      _ = self.saveChanges(andEnableRollBack: isRollBackEnabled)
-//    }
-//  }
+}
+
+// MARK: - Save
+
+extension NSManagedObjectContext {
+
+  //  /// **Mechanica**
+  //  ///
+  //  /// Asynchronously attempts to commit unsaved changes or rollbacks if any error occurs.
+  //  /// - Parameters:
+  //  ///   - isRollBackEnabled: Enables rollback if any error occurs (default true).
+  //  public func performSave(orRollBack isRollBackEnabled: Bool = true) {
+  //    perform {
+  //      [unowned self] in
+  //      _ = self.saveChanges(andEnableRollBack: isRollBackEnabled)
+  //    }
+  //  }
+  
+  
+  /// **Mechanica**
+  ///
+  /// Result of void representing `success` or an instance of `Error`.
+  public enum SaveResult {
+    /// A success case
+    case success
+    /// A failure case with an associated `Error` instance.
+    case failure(Swift.Error)
+  }
   
   /// **Mechanica**
   ///

  
  /// **Mechanica**
  ///
  /// Result of void representing `success` or an instance of `Error`.
  public enum SaveResult {
    /// A success case
    case success
    /// A failure case with an associated `Error` instance.
    case failure(Swift.Error)
  }
  
  /// **Mechanica**
  ///
  /// The persistent stores associated with the receiver.
  private var stores: [NSPersistentStore] {
    guard let psc = persistentStoreCoordinator else { fatalError("Persistent Store Coordinator missing.") }

  /// - Parameters:
  ///   - isRollBackEnabled: Enables rollback if any error occurs (default true).
  /// - Returns: a success case if the save succeeds, otherwise a failure case with an associated `Error` instance.
  /// - Throws: throws an error in cases of failure.
  @discardableResult
  private func saveChanges(andEnableRollBack isRollBackEnabled: Bool = true) -> SaveResult {
    do {
