How to update an Elasticsearch document in NEST2
<p>I have ported my code to NEST 2.0 and Elasticsearch 2.0</p>

<p>I need to find a way to update a document already stored into ES2</p>

<p>I was using the <a href="https://nest.azurewebsites.net/nest/core/update.html" rel="nofollow">partial object technique</a>:</p>

<pre><code>        elastic.Update&lt;myDocumentType, myPartialDocumentType&gt;(u =&gt; u
            .Index(myIndexName)
            .Id(id)
            .Doc(
                new myPartialDocumentType()
                {
                    // set the fields to update here
                })
            .Refresh());
</code></pre>

<p>How to do the same thing using NEST2?</p>