 class="nv">renderHandler</span><span class="p">:</span> <span class="kt"><a href="../Classes/NextLevelSessionExporter.html#/s:15SessionExporter09NextLevelaB0C13RenderHandlera">RenderHandler</a></span><span class="p">?</span> <span class="o">=</span> <span class="kc">nil</span><span class="p">,</span> <span class="nv">progressHandler</span><span class="p">:</span> <span class="kt"><a href="../Classes/NextLevelSessionExporter.html#/s:15SessionExporter09NextLevelaB0C15ProgressHandlera">ProgressHandler</a></sp