<?xml version="1.0" encoding="utf-8"?>
<request method="invoice.create">
<invoice>
<client_id>1</client_id>
<lines>
<line>
<name>Test line 1</name>
<unit_cost>1</unit_cost>
<quantity>1</quantity>
</line>
<line>
<name>Test line 2</name>
<unit_cost>2</unit_cost>
<quantity>2</quantity>
</line>
</lines>
</invoice>
</request>