alias() and other aliasing functions are not working for Grafana

Issue

Attempting to utilise functions mentioned in the documentation. However, whenever an alias() or any function is called, the graph disappears with "No data points".

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Here are the common uses of Markdown.

Code blocks

~~~
Code surrounded in tildes is easier to read
~~~

Links/URLs

[Red Hat Customer Portal](https://access.redhat.com)