measure the rendering time in vtk.js using "GetLastRenderTimeInSeconds()"

I get an error when I used the following:

const lastRenderTime = renderWindow.GetLastRenderTimeInSeconds();
console.log(`Last Render Time: ${lastRenderTime} seconds`);

The property is on vtkRenderer, not vtkRenderWindow: renderer.getLastRenderTimeInSeconds().

Thank you for answering, but I get the following error:
TypeError: vtkRenderer.GetLastRenderTimeInSeconds is not a function

It gives me the same error