anchor.diff:          /// <param name="mapping">The function to apply to the characters of the string.</param>
           /// <param name="str">The input string.</param>
           /// <returns>The resulting string.</returns>
  -        /// <exception cref="System.ArgumentNullException">Thrown when the input string is null.</exception>
           [<CompiledName("Map")>]
           val map: mapping:(char -> char) -> str:string -> string
   
  
positive.code:         /// <param name="mapping">The function to produce a string from each character of the input string.</param>
          /// <param name="str">The input string.</param>
          /// <returns>The concatenated string.</returns>
          /// <exception cref="System.ArgumentNullException">Thrown when the input string is null.</exception>
          [<CompiledName("Collect")>]
          val collect: mapping:(char -> string) -> str:string -> string
  
  
negative.code:         /// <param name="strings">The sequence of strings to be concatenated.</param>
          /// <returns>A new string consisting of the concatenated strings separated by
          /// the separation string.</returns>
          /// <exception cref="System.ArgumentNullException">Thrown when <c>strings</c> is null.</exception>
          [<CompiledName("Concat")>]
          val concat: sep:string -> strings: seq<string> -> string
  
          /// <summary>Applies the function <c>action</c> to each character in the string.</summary>
          /// <param name="action">The function to be applied to each character of the string.</param>
          /// <param name="str">The input string.</param>
          [<CompiledName("Iterate")>]
          val iter: action:(char -> unit) -> str:string -> unit
  
  