Updated the files.

my-app/node_modules/@angular-devkit/schematics/src/formats/index.d.ts

@@ -0,0 +1,11 @@
+/**
+ * @license
+ * Copyright Google LLC All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+import { schema } from '@angular-devkit/core';
+export { htmlSelectorFormat } from './html-selector';
+export { pathFormat } from './path';
+export declare const standardFormats: schema.SchemaFormat[];