/// <summary>
/// Give access to the direct sub-frames of the current window.
/// </summary>
/// <param name="index">Frame index</param>
/// <returns></returns>
public async Task <WindowInterop> Get(int index)
{
var jsObjectRef = await jsRuntime.GetInstancePropertyRefAsync(jsRuntimeObjectRef, $"frames[{index}]");
var windowInterop = await jsRuntime.GetInstancePropertyAsync <WindowInterop>(jsRuntimeObjectRef, $"frames[{index}]", false);
windowInterop.SetJsRuntime(jsRuntime, jsObjectRef);
return(windowInterop);
}