***Method arguments**: This is useful when the route arguments use the `*` value and you want to have access to that value at runtime. In this case, you can add arguments to the method itself using the same name as the one defined in the route arguments and the PixieApp framework will automatically pass the correct value.
* We invoke three different routes (`display_metric1`, `display_metric2`, and `display_wc`) that are responsible for displaying the three widgets respectively.