_analyzer = watson.tone_analyzer({version: 'v3', /*...*/});</code></pre></li>
</ul>
<h2>Installation</h2><pre class="prettyprint source lang-sh"><code>$ npm install watson-developer-cloud --save</code></pre><h2>Usage</h2><p>The examples below assume that you already have service credentials. If not,
you will have to create a service in <a href="https://console.ng.bluemix.net">Bluemix</a>.</p>
<p>If you are running your application in Bluemix, you don't need to specify the
credentials; the library will get t