anchor.diff:          /// <param name="state">The initial state.</param>
           /// <returns>The resulting sequence of computed states.</returns>
           /// <exception cref="System.ArgumentNullException">Thrown when the input sequence is null.</exception>
  +        /// <remarks>This function consumes the whole input sequence before yielding the first element of the result sequence.</remarks>
           [<CompiledName("ScanBack")>]
           val scanBack<'T,'State> : folder:('T -> 'State -> 'State) -> source:seq<'T> -> state:'State -> seq<'State>
   
  
positive.code:         /// <param name="source">The input sequence.</param>
          /// <returns>The found index or <c>None</c>.</returns>
          /// <exception cref="System.ArgumentNullException">Thrown when the input sequence is null.</exception>
          [<CompiledName("TryFindIndexBack")>]
          val tryFindIndexBack : predicate:('T -> bool) -> source:seq<'T> -> int option
  
  
negative.code:         /// <returns>The sequence split into chunks.</returns>
          /// <exception cref="System.ArgumentNullException">Thrown when the input sequence is null.</exception>
          /// <exception cref="System.ArgumentException">Thrown when <c>count</c> is not positive.</exception>
          /// <remarks>This function consumes the whole input sequence before yielding the first element of the result sequence.</remarks>
          [<CompiledName("SplitInto")>]
          val splitInto: count:int -> source:seq<'T> -> seq<'T[]>
  
  