on from the given struct type <code>T</code> and the reference to the instance. The type <code>T</code> must be standard layout and trivially copyable as well as have a <code><a class="el" href="classnvtx3_1_1v1_1_1mv1_1_1schema.html#a3e5a123eaefb66661a07d8cee780198e" title="Gets the schema instance for a specific payload struct type.">schema::get</a>&lt;T&gt;()</code> specialization via <code>NVTX3_DEFINE_SCHEMA_GET</code> (<code><a class="el" href="nvtx3_8hpp.html#a5cfe8cd6e61d96531dff70823e818674" title=