Trying to extend angular2 directive

<!DOCTYPE html>
<html>

  <head>
    <script>
    document.write('<base href="' + document.location + '" />');
  </script>
    <title>Angular 2 Directive</title>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" />
    <link rel="stylesheet" href="styles.css" />
    <!-- Polyfill(s) for older browsers -->
    <script src="https://unpkg.com/core-js/client/shim.min.js"></script>
    <script src="https://unpkg.com/zone.js@0.6.25?main=browser"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.3"></script>
    <script src="https://unpkg.com/systemjs@0.19.27/dist/system.src.js"></script>
    <script src="systemjs.config.js"></script>
    <script>
    System.import('app').catch(function(err) {
      console.error(err);
    });
  </script>
  </head>

  <body class="container">
    <my-app>Loading...</my-app>
    <!-- 
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
-->
  </body>

</html>

// Code goes here

/* Styles go here */

body {
  color: black;
}

import { NgModule }       from '@angular/core';
import { BrowserModule }  from '@angular/platform-browser';
import { CommonModule }   from '@angular/common';
import { FormsModule }    from '@angular/forms';

/* App Root */
import { AppComponent }   from './app.component';

/* Feature Modules */
import { ClipboardModule }  from 'angular2-clipboard';

@NgModule({
  imports: [BrowserModule, CommonModule, FormsModule, ClipboardModule],
  declarations: [AppComponent],
  bootstrap: [AppComponent]
})

export class AppModule { 
  
}

import { Component } from '@angular/core';

@Component({
  selector: 'my-app',
  templateUrl: './app.component.html'
})

export class AppComponent { }

// The browser platform with a compiler
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';

// The app module
import { AppModule } from './app.module';

// Compile and launch the module
platformBrowserDynamic().bootstrapModule(AppModule);

/**
 * PLUNKER VERSION
 * (based on systemjs.config.js in angular.io)
 * System configuration for Angular 2 samples
 * Adjust as necessary for your application needs.
 */
(function (global) {
  System.config({
    // DEMO ONLY! REAL CODE SHOULD NOT TRANSPILE IN THE BROWSER
    transpiler: 'ts',
    typescriptOptions: {
      tsconfig: true
    },
    meta: {
      'typescript': {
        "exports": "ts"
      }
    },
    paths: {
      // paths serve as alias
      'npm:': 'https://unpkg.com/'
    },
    // map tells the System loader where to look for things
    map: {
      // our app is within the app folder
      app: '.',

      // angular bundles
      '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
      '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
      '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
      '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
      '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
      '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',

      // other libraries
      'rxjs': 'npm:rxjs',
      'ts': 'npm:plugin-typescript@4.0.10/lib/plugin.js',
      'typescript':                'npm:typescript@2.0.2/lib/typescript.js',
      'clipboard': 'npm:clipboard@1.5.12/dist/clipboard.js',
      'angular2-clipboard': 'npm:angular2-clipboard@0.2.17'
    },
    // packages tells the System loader how to load when no filename and/or no extension
    packages: {
      app: {
        main: './main.ts',
        defaultExtension: 'ts'
      },
      rxjs: {
        defaultExtension: 'js'
      },
      'angular2-clipboard': {
        main: 'index.js',
        defaultExtension: 'js'
      },
      'clipboard': {
        defaultExtension: 'js'
      }
    }
  });
})(this);


/*
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/

{
  "compilerOptions": {
    "target": "es5",
    "module": "commonjs",
    "moduleResolution": "node",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "removeComments": false,
    "noImplicitAny": true,
    "suppressImplicitAnyIndexErrors": true
  }
}

 <input type="text" class="form-control" [(ngModel)]="content" placeholder="copy after click the copy button">
  
  <span class="input-group-btn">
    <button class="btn btn-default" type="button" ngIIclipboard [cbContent]="content">copy</button>
  </span>

import { Injectable } from "@angular/core";
import { ClipboardModule }  from "angular2-clipboard";

/**
 * wrapper of angular2 - clipboard
 * need to replace ngOnInit()
 */
@Injectable()
export default class CopyDirective extends ClipboardModule {
		public cm: any; // better way than any?

    constructor(cm: ClipboardModule) {
        super();
        this.cm = cm;
    }
}