anchor.diff:          with _ -> None
   
   
  -/// Additional operations on Result<'Ok,'Error>
  +/// Additional operations on Result<'T,'Error>
   [<RequireQualifiedAccess>]
   module Result =
       let result x = Ok x
  
positive.code:         try
              Ok (f x)
          with e -> Error e
  
  
  /// Additional operations on Choice
  
negative.code:         let index = Internals.FindSliceIndex.arrayImpl slice source
          if index = -1 then None else Some index
      #endif
  
      /// <summary>
      /// Creates two arrays by applying the mapper function to each element in the array
      /// and classifying the transformed values depending on whether they were wrapped with Choice1Of2 or Choice2Of2.
      /// </summary>
      /// <returns>
      /// A tuple with both resulting arrays.
      /// </returns>    
      let partitionMap (mapper: 'T -> Choice<'T1,'T2>) (source: array<'T>) =
          let (x, y) = ResizeArray (), ResizeArray ()
          Array.iter (mapper >> function Choice1Of2 e -> x.Add e | Choice2Of2 e -> y.Add e) source
          x.ToArray (), y.ToArray ()
  
  
  /// Additional operations on String
  