anchor.diff:      /// (inputs1, inputs2) ||> List.iteri2 (fun i s1 s2 -> printfn "Index {i}: {s1} - {s2}")
       /// </code>
       /// Evaluates to <c>unit</c> and prints
  -    /// <code>
  +    /// <code lang="fsharp">
       /// Index 0: a - banana
       /// Index 1: b - pear
       /// Index 2: c - apple
  
positive.code:     /// <returns>The final state value.</returns>
      ///
      /// <example id="fold2-1">
      /// <code lang="fsharp">Count the numer of times the coins match:
      /// type CoinToss = Head | Tails
      ///
      /// let inputs1 = [Tails; Head; Tails]
  
negative.code:     /// <exception cref="T:System.ArgumentException">Thrown when index is outside 0..source.Length - count</exception>
      ///
      /// <example id="removeManyAt-1">
      /// <code lang="fsharp">
      /// let inputs = [ 0; 1; 2; 3 ]
      ///
      /// inputs |> List.removeManyAt 1 2
  