Postman scripts : "pm is not defined" : <p>I try to write a Pre-request script in Postman. I want to to make a request so I try to use <a href="https://www.getpostman.com/docs/postman/scripts/postman_sandbox_api_reference#pmsendrequest" rel="noreferrer"><code>pm.sendRequest</code></a>. For example :</p>

<pre><code>pm.sendRequest('http://example.com', function (err, res) {
    //...
});
</code></pre>

<p>But I get this error :</p>

<p><code>There was an error in evaluating the Pre-request Script: pm is not defined</code></p>

<p>I'm on Windows 10. I just updated the extension.</p>

<p>How do I access <code>pm</code>?</p>
