var iterableObject = function () {
    var a = {};
    a.set = function (x, k, o, n) {
      var a = Object.create(x);
      a.keys = function () {
        return pushnew(keys(x), k)
      }
    };
    a.rem = function (x, k, o) {
      var a = Object.create(x);
      a.keys = function () {
        return pull(keys(x), k)
      }
    };
    a.keys = function () {
      return []
    };
    return a
  }