Updated the files.

my-app/node_modules/@schematics/angular/class/files/__name@dasherize____type__.spec.ts.template

@@ -0,0 +1,7 @@
+import { <%= classify(name) %> } from './<%= dasherize(name) %><%= type %>';
+
+describe('<%= classify(name) %>', () => {
+  it('should create an instance', () => {
+    expect(new <%= classify(name) %>()).toBeTruthy();
+  });
+});

my-app/node_modules/@schematics/angular/class/files/__name@dasherize____type__.ts.template

@@ -0,0 +1,2 @@
+export class <%= classify(name) %> {
+}

my-app/node_modules/@schematics/angular/class/index.d.ts

@@ -0,0 +1,10 @@
+/**
+ * @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 { Rule } from '@angular-devkit/schematics';
+import { Schema as ClassOptions } from './schema';
+export default function (options: ClassOptions): Rule;

my-app/node_modules/@schematics/angular/class/index.js

@@ -0,0 +1,15 @@
+"use strict";
+/**
+ * @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
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+const generate_from_files_1 = require("../utility/generate-from-files");
+function default_1(options) {
+    options.type = options.type ? `.${options.type}` : '';
+    return (0, generate_from_files_1.generateFromFiles)(options);
+}
+exports.default = default_1;

my-app/node_modules/@schematics/angular/class/schema.d.ts

@@ -0,0 +1,25 @@
+/**
+ * Creates a new, generic class definition in the given project.
+ */
+export interface Schema {
+    /**
+     * The name of the new class.
+     */
+    name: string;
+    /**
+     * The path at which to create the class, relative to the workspace root.
+     */
+    path?: string;
+    /**
+     * The name of the project.
+     */
+    project: string;
+    /**
+     * Do not create "spec.ts" test files for the new class.
+     */
+    skipTests?: boolean;
+    /**
+     * Adds a developer-defined type to the filename, in the format "name.type.ts".
+     */
+    type?: string;
+}

my-app/node_modules/@schematics/angular/class/schema.js

@@ -0,0 +1,4 @@
+"use strict";
+// THIS FILE IS AUTOMATICALLY GENERATED. TO UPDATE THIS FILE YOU NEED TO CHANGE THE
+// CORRESPONDING JSON SCHEMA FILE, THEN RUN devkit-admin build (or bazel build ...).
+Object.defineProperty(exports, "__esModule", { value: true });

my-app/node_modules/@schematics/angular/class/schema.json

@@ -0,0 +1,45 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema",
+  "$id": "SchematicsAngularClass",
+  "title": "Angular Class Options Schema",
+  "type": "object",
+  "description": "Creates a new, generic class definition in the given project.",
+  "additionalProperties": false,
+  "properties": {
+    "name": {
+      "type": "string",
+      "description": "The name of the new class.",
+      "$default": {
+        "$source": "argv",
+        "index": 0
+      },
+      "x-prompt": "What name would you like to use for the class?"
+    },
+    "path": {
+      "type": "string",
+      "format": "path",
+      "$default": {
+        "$source": "workingDirectory"
+      },
+      "description": "The path at which to create the class, relative to the workspace root.",
+      "visible": false
+    },
+    "project": {
+      "type": "string",
+      "description": "The name of the project.",
+      "$default": {
+        "$source": "projectName"
+      }
+    },
+    "skipTests": {
+      "type": "boolean",
+      "description": "Do not create \"spec.ts\" test files for the new class.",
+      "default": false
+    },
+    "type": {
+      "type": "string",
+      "description": "Adds a developer-defined type to the filename, in the format \"name.type.ts\"."
+    }
+  },
+  "required": ["name", "project"]
+}