whole_func_string: function delegateProperty(f) {
      return function() {
        if (!arguments.length) return f();
        f.apply(null, arguments);
        return self;
      };
    }
func_code_string: function delegateProperty(f) {
      return function() {
        if (!arguments.length) return f();
        f.apply(null, arguments);
        return self;
      };
    }
func_documentation_string: /*
  Given a function, a new function is returned that invokes the given
  function. The return value from the function is always the `self` object.