docs: function () {
                  this.$InputElement.initWidget.call(this);
  
                  var bindings = this._cfg.bind;
                  if (bindings.value) {
                      var newValue = this._transform(bindings.value.transform, bindings.value.inside[bindings.value.to], "toWidget");
                      if (newValue != null) {
                          this._domElt.value = newValue;
                      }
                  } else {
                      this.$logWarn(this.BINDING_NEEDED, [this.$class, "value"]);
                  }
                  this._setPlaceholder();
              }