docs: function () { $assertEveryCalled (function (mkay__2) {
  
          var twoPlusTwo   = function () { return 2 + 2 }
          var shouldBeFour = function (result) {
              $assert (result == 4)
              mkay__2 () }
  
          twoPlusTwo.asContinuation (shouldBeFour)
          _.asContinuation (twoPlusTwo) (shouldBeFour) }) }