anchor.diff:            /// Whether to overwrite previous tests. Defaults to true.
             Overwrite     : bool
             /// An optional function that is called when the perf tests have been completed
  -          /// allowing you to extrace the results and save them or display them or show them
  -          /// to your mom. It will be passed the path of the xml file with test results and
  +          /// allowing you to extrace the results and save them or display them. 
  +          /// It will be passed the path of the xml file with test results and
             /// the list of TestSessions that comes from PerfUtil.
             HandleResults : string * TestSession list -> unit }
           /// Defaults to a xml file in the currently executing DLL's directory
  
positive.code:           /// Whether to print results to stdout. Defaults to true.
            Verbose       : bool
            /// An optional function that is called when the perf tests have been completed
            /// allowing you to extrace the results and save them or display them or show them
            /// to your mom.
            HandleResults : TestSession list -> unit }
          static member Defaults =
              { ThrowOnError  = false
  
negative.code:     /// </summary>
      /// <param name="name">Name for the group of performance tests</param>
      /// <param name="subject">(Current) implementation under test.</param>
      /// <param name="testRunId">The id of the test run; subsequent runs must grow this value, so
      /// a recommended value for this parameter is the current assembly version.</param>
      /// <param name="tests">The performance tests to run against the subject and the alternatives.</param>
      let testPerfHistory name subject (testRunId : string) =
          testPerfHistoryWithConfig (PerfHistoryConf.Defaults name) name subject testRunId
  