title: .NET Client - include max_children property in nested sorting
body: <p>based on documentation and 6.5 release notes, we've new property in sorting by nested, named <code>max_children</code>. How to pass this property in .net client?</p>
  
  <p>Here's my sort descriptor:</p>
  
  <pre><code>SortDescriptor.Field(x =&gt; x.Field(y =&gt; y.Variants[0].GrossPrice).Order(SortOrder.Ascending).Nested(n =&gt; n.Path(p =&gt; p.Variants).Filter(f =&gt; filerContainer)))
  </code></pre>
  
  <p>and the sort part of json output</p>
  
  <pre><code>"variants.gross_price": {
      "order": "asc",
      "nested": {
          "path": "variants",
          //"max_children": 1,//
          "filter": {
              [...]
  
          }
      }
  }
  </code></pre>
  
  <p><code>Max_children</code> is the property i want to pass in. Currently it isn't there. It seems to me it should look like:</p>
  
  <pre><code>SortDescriptor.Field(x =&gt; x.Field(y =&gt; y.Variants[0].GrossPrice).Order(SortOrder.Ascending).Nested(n =&gt; n.Path(p =&gt; p.Variants).MaxChildren(1).Filter(f =&gt; filerContainer)))
  </code></pre>
  
  <p>but there's an error:</p>
  
  <blockquote>
    <p>NestedSortDescriptor doest not contain a definition for MaxChildren.</p>
  </blockquote>